/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=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:11:00,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:11:00,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:11:00,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:11:00,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:11:00,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:11:00,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:11:00,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:11:00,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:11:00,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:11:00,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:11:00,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:11:00,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:11:00,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:11:00,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:11:00,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:11:00,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:11:00,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:11:00,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:11:00,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:11:00,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:11:00,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:11:00,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:11:00,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:11:00,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:11:00,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:11:00,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:11:00,594 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:11:00,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:11:00,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:11:00,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:11:00,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:11:00,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:11:00,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:11:00,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:11:00,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:11:00,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:11:00,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:11:00,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:11:00,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:11:00,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:11:00,607 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 14:11:00,635 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:11:00,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:11:00,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:11:00,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:11:00,637 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:11:00,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:11:00,637 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:11:00,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:11:00,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:11:00,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:11:00,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:11:00,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:11:00,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:11:00,639 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:11:00,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:11:00,639 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:11:00,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:11:00,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:11:00,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:11:00,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:11:00,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:11:00,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:11:00,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:11:00,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:11:00,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:11:00,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:11:00,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:11:00,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:11:00,642 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:11:00,642 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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;log-additional-information=true; [2020-09-25 14:11:01,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:11:01,756 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:11:01,766 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:11:01,768 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:11:01,768 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:11:01,770 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product05.cil.c [2020-09-25 14:11:01,856 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/86bb11f1f/2745695f99e74aa0ae9de126daa62aec/FLAG6aee972fb [2020-09-25 14:11:02,501 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:11:02,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product05.cil.c [2020-09-25 14:11:02,518 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/86bb11f1f/2745695f99e74aa0ae9de126daa62aec/FLAG6aee972fb [2020-09-25 14:11:02,805 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/86bb11f1f/2745695f99e74aa0ae9de126daa62aec [2020-09-25 14:11:02,818 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:11:02,824 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:11:02,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:11:02,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:11:02,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:11:02,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:11:02" (1/1) ... [2020-09-25 14:11:02,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411e9963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:02, skipping insertion in model container [2020-09-25 14:11:02,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:11:02" (1/1) ... [2020-09-25 14:11:02,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:11:02,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:11:03,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:11:03,394 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:11:03,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:11:03,520 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:11:03,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:03 WrapperNode [2020-09-25 14:11:03,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:11:03,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:11:03,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:11:03,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:11:03,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:03" (1/1) ... [2020-09-25 14:11:03,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:03" (1/1) ... [2020-09-25 14:11:03,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:03" (1/1) ... [2020-09-25 14:11:03,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:03" (1/1) ... [2020-09-25 14:11:03,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:03" (1/1) ... [2020-09-25 14:11:03,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:03" (1/1) ... [2020-09-25 14:11:03,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:03" (1/1) ... [2020-09-25 14:11:03,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:11:03,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:11:03,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:11:03,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:11:03,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:03" (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 14:11:03,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:11:03,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:11:03,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:11:03,737 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:11:03,737 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:11:03,738 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:11:03,739 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:11:03,740 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:11:03,740 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:11:03,740 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:11:03,740 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:11:03,740 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:11:03,740 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:11:03,741 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:11:03,741 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:11:03,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:11:03,742 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:11:03,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:11:03,742 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:11:03,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:11:03,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:11:03,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:11:03,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:11:03,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:11:03,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:11:03,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:11:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:11:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:11:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:11:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:11:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:11:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:11:03,746 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:11:03,746 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:11:03,746 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:11:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:11:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:11:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:11:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:11:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:11:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:11:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:11:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:11:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:11:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:11:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:11:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:11:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:11:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:11:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:11:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:11:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:11:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:11:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:11:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:11:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:11:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:11:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:11:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:11:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:11:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:11:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:11:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:11:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:11:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:11:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:11:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:11:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:11:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:11:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:11:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:11:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:11:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:11:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:11:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:11:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:11:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:11:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:11:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:11:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:11:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:11:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:11:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:11:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:11:04,941 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:11:04,941 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:11:04,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:11:04 BoogieIcfgContainer [2020-09-25 14:11:04,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:11:04,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:11:04,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:11:04,955 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:11:04,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:11:02" (1/3) ... [2020-09-25 14:11:04,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f969a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:11:04, skipping insertion in model container [2020-09-25 14:11:04,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:03" (2/3) ... [2020-09-25 14:11:04,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f969a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:11:04, skipping insertion in model container [2020-09-25 14:11:04,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:11:04" (3/3) ... [2020-09-25 14:11:04,960 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product05.cil.c [2020-09-25 14:11:04,973 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:11:04,986 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:11:05,009 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:11:05,040 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:11:05,041 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:11:05,041 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:11:05,041 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:11:05,041 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:11:05,041 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:11:05,042 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:11:05,042 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:11:05,071 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states. [2020-09-25 14:11:05,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:11:05,089 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:11:05,090 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 14:11:05,091 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:11:05,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:11:05,097 INFO L82 PathProgramCache]: Analyzing trace with hash 134395838, now seen corresponding path program 1 times [2020-09-25 14:11:05,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:11:05,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [297702916] [2020-09-25 14:11:05,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:11:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:05,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:05,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:06,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:07,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:07,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:10,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:10,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 14:11:10,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:11:10,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 14:11:10,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:10,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:10,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:10,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 14:11:10,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 14:11:10,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 14:11:11,141 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:11:11,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:11:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:11,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:11,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:11,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:11:11,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:11,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-09-25 14:11:11,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:11,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:11,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:11,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:11,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 14:11:11,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:11,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:11:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:11,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:11,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:11,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:11:11,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:11,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:11:11,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:11,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:11,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:11,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:11,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:11:11,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:11,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:11:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:11,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:11,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:11,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:11:11,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:11,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:11:11,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:11,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:11,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:11,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:11,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:11:11,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:11,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:11:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:11,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:11,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:11,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:11:11,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:11,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:11:11,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:11,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:11,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:11,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:11,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:11:11,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:11,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:11:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:11,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:11,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:11,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:11:11,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:11,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:11:11,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:11,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:11,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:11,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:11,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:11:11,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:11,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:11:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:11,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:11,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:11,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:11:11,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:11,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:11:11,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:11,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:11:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:11:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:11:11,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:11,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:11:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:11,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:11,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:11,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:11:11,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:11,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:11:11,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:11,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:11:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:11:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:11:11,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:11,680 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 14:11:11,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [297702916] [2020-09-25 14:11:11,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:11:11,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:11:11,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148597293] [2020-09-25 14:11:11,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:11:11,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:11:11,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:11:11,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:11:11,715 INFO L87 Difference]: Start difference. First operand 264 states. Second operand 4 states. [2020-09-25 14:11:12,435 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:11:13,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:11:13,456 INFO L93 Difference]: Finished difference Result 391 states and 471 transitions. [2020-09-25 14:11:13,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:11:13,458 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 14:11:13,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:11:13,482 INFO L225 Difference]: With dead ends: 391 [2020-09-25 14:11:13,482 INFO L226 Difference]: Without dead ends: 252 [2020-09-25 14:11:13,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:11:13,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-09-25 14:11:13,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 213. [2020-09-25 14:11:13,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-09-25 14:11:13,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 229 transitions. [2020-09-25 14:11:13,616 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 229 transitions. Word has length 142 [2020-09-25 14:11:13,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:11:13,618 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 229 transitions. [2020-09-25 14:11:13,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:11:13,619 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 229 transitions. [2020-09-25 14:11:13,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 14:11:13,636 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:11:13,636 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 14:11:13,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:11:13,637 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:11:13,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:11:13,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1084420285, now seen corresponding path program 1 times [2020-09-25 14:11:13,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:11:13,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303912345] [2020-09-25 14:11:13,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:11:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:13,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:14,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:14,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:15,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:17,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:18,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:18,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 14:11:18,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:11:18,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 14:11:18,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:18,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:18,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:11:18,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 14:11:18,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-25 14:11:18,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:11:19,102 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:11:19,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:11:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:19,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:19,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:19,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:11:19,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:19,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-09-25 14:11:19,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:19,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:19,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:19,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:19,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:11:19,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:19,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:11:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:19,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:19,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:19,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:11:19,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:19,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:11:19,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:19,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:19,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:19,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:19,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:11:19,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:19,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:11:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:19,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:19,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:19,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:11:19,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:19,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:11:19,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:19,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:19,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:19,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:19,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:11:19,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:19,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:11:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:19,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:19,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:19,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:11:19,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:19,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:11:19,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:19,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:19,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:19,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:19,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:11:19,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:19,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:11:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:19,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:19,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:19,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:11:19,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:19,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:11:19,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:19,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:19,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:19,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:19,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:11:19,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:19,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:11:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:19,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:19,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:19,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:11:19,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:19,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:11:19,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:19,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:19,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:19,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:19,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:11:19,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:19,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:11:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:19,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:19,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:19,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:11:19,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:19,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:11:19,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:19,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:19,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:11:19,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:19,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:11:19,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:19,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 14:11:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:19,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:19,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:19,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:11:19,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:19,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:11:19,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:19,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:19,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:11:19,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:19,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:11:19,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:19,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 14:11:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:19,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:19,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:19,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:11:19,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:19,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:11:19,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:19,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:19,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:11:19,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:11:19,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:11:19,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:19,657 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 14:11:19,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303912345] [2020-09-25 14:11:19,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:11:19,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:11:19,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703654083] [2020-09-25 14:11:19,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:11:19,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:11:19,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:11:19,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:11:19,664 INFO L87 Difference]: Start difference. First operand 213 states and 229 transitions. Second operand 9 states. [2020-09-25 14:11:20,255 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:11:21,223 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:11:21,581 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:11:22,242 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:11:22,585 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:23,154 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:11:23,478 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:11:23,789 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:11:24,431 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:25,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:11:25,259 INFO L93 Difference]: Finished difference Result 524 states and 650 transitions. [2020-09-25 14:11:25,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 14:11:25,260 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 14:11:25,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:11:25,268 INFO L225 Difference]: With dead ends: 524 [2020-09-25 14:11:25,268 INFO L226 Difference]: Without dead ends: 397 [2020-09-25 14:11:25,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 14:11:25,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-09-25 14:11:25,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 291. [2020-09-25 14:11:25,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-09-25 14:11:25,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 319 transitions. [2020-09-25 14:11:25,363 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 319 transitions. Word has length 151 [2020-09-25 14:11:25,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:11:25,364 INFO L479 AbstractCegarLoop]: Abstraction has 291 states and 319 transitions. [2020-09-25 14:11:25,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:11:25,364 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 319 transitions. [2020-09-25 14:11:25,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 14:11:25,366 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:11:25,367 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 14:11:25,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:11:25,367 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:11:25,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:11:25,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1459319237, now seen corresponding path program 1 times [2020-09-25 14:11:25,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:11:25,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1316975005] [2020-09-25 14:11:25,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:11:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:25,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:25,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:26,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:28,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:28,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 14:11:28,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:11:28,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3205 [2020-09-25 14:11:28,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:28,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:28,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:11:28,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:11:28,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 14:11:28,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:28,969 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:11:28,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:11:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:29,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:29,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:29,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:11:29,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:29,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 14:11:29,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:29,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:29,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:29,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:29,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:11:29,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:29,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:11:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:29,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:29,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:29,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:11:29,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:29,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:11:29,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:29,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:29,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:29,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:29,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:11:29,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:29,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:11:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:29,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:29,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:29,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:11:29,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:29,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:11:29,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:29,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:29,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:29,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:29,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:11:29,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:29,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:11:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:29,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:29,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:29,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:11:29,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:29,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:11:29,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:29,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:29,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:29,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:29,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:11:29,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:29,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:11:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:29,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:29,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:29,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:11:29,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:29,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:11:29,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:29,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:29,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:29,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:29,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:11:29,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:29,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:11:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:29,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:29,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:29,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:11:29,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:29,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:11:29,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:29,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:29,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:29,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:29,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:11:29,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:29,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 14:11:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:29,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:29,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:29,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:29,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:11:29,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:11:29,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 14:11:29,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:29,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:29,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:11:29,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:11:29,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:11:29,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:29,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:11:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:29,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:29,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:29,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:11:29,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:29,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 14:11:29,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:29,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:29,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:29,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:29,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:11:29,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:11:29,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 14:11:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:29,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:29,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:29,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:11:29,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:29,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:11:29,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:29,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:29,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:29,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:29,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:11:29,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:29,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 14:11:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:29,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:29,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:29,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:11:29,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:29,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:11:29,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:29,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:29,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:11:29,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:29,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:11:29,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:29,493 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 14:11:29,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1316975005] [2020-09-25 14:11:29,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:11:29,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 14:11:29,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779417249] [2020-09-25 14:11:29,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:11:29,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:11:29,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:11:29,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:11:29,498 INFO L87 Difference]: Start difference. First operand 291 states and 319 transitions. Second operand 10 states. [2020-09-25 14:11:30,029 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:11:31,065 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:11:31,378 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:11:31,728 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:32,082 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:11:32,416 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:11:32,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:11:32,732 INFO L93 Difference]: Finished difference Result 471 states and 544 transitions. [2020-09-25 14:11:32,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:11:32,732 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 165 [2020-09-25 14:11:32,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:11:32,734 INFO L225 Difference]: With dead ends: 471 [2020-09-25 14:11:32,734 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 14:11:32,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-25 14:11:32,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 14:11:32,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 14:11:32,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 14:11:32,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 14:11:32,739 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 165 [2020-09-25 14:11:32,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:11:32,739 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 14:11:32,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:11:32,739 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 14:11:32,739 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 14:11:32,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:11:32,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 14:11:32,927 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:11:33,100 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:11:33,268 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:11:33,432 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:11:33,599 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:11:33,765 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:33,929 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:34,088 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:11:34,282 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:34,554 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 10 [2020-09-25 14:11:34,716 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:34,873 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:11:35,033 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:35,288 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 10 [2020-09-25 14:11:35,657 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:11:36,188 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 10 [2020-09-25 14:11:36,351 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:36,811 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:11:37,148 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-09-25 14:11:37,479 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-09-25 14:11:37,902 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-09-25 14:11:38,269 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:11:38,822 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:11:39,063 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 14 [2020-09-25 14:11:39,473 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:11:39,805 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:11:40,139 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:11:40,561 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:11:40,883 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:11:41,385 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:11:41,539 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:11:41,699 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:41,853 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:11:42,011 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:42,172 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:42,314 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:11:42,466 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:11:42,627 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:42,784 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:42,935 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:11:43,093 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:11:43,270 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:43,428 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:43,577 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:11:43,734 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:43,887 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:11:44,035 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:11:44,183 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:11:44,337 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:11:44,494 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:44,651 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:44,897 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 10 [2020-09-25 14:11:45,050 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:11:45,209 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:45,365 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:11:45,523 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:45,680 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:45,839 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:45,996 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:46,154 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:46,308 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:11:46,461 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:11:46,609 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:11:46,757 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:11:46,909 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:11:47,062 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:11:47,220 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:47,377 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:47,535 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:47,687 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:11:47,835 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:11:47,984 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:11:48,133 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:11:48,290 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:48,449 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:11:48,816 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:11:49,348 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 14:11:49,736 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 13 [2020-09-25 14:11:49,951 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1 [2020-09-25 14:11:50,191 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 22 [2020-09-25 14:11:50,451 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1 [2020-09-25 14:11:50,729 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 17 [2020-09-25 14:11:50,969 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 22 [2020-09-25 14:11:51,402 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 17 [2020-09-25 14:11:51,931 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 22 [2020-09-25 14:11:52,359 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 13 [2020-09-25 14:11:52,625 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 22 [2020-09-25 14:11:52,873 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 22 [2020-09-25 14:11:53,161 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:11:53,394 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1 [2020-09-25 14:11:53,623 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 22 [2020-09-25 14:11:54,272 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 22 [2020-09-25 14:11:54,499 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 22 [2020-09-25 14:11:54,983 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 14 [2020-09-25 14:11:55,205 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1 [2020-09-25 14:11:55,850 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 22 [2020-09-25 14:11:56,270 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 14 [2020-09-25 14:11:56,881 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 22 [2020-09-25 14:11:57,101 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 22