/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=LOWLEXORDER --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_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:15:48,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:15:48,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:15:48,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:15:48,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:15:48,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:15:48,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:15:48,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:15:48,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:15:48,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:15:48,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:15:48,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:15:48,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:15:48,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:15:48,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:15:48,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:15:48,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:15:48,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:15:48,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:15:48,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:15:48,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:15:48,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:15:48,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:15:48,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:15:48,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:15:48,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:15:48,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:15:48,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:15:48,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:15:48,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:15:48,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:15:48,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:15:48,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:15:48,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:15:48,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:15:48,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:15:48,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:15:48,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:15:48,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:15:48,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:15:48,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:15:48,767 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:15:48,814 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:15:48,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:15:48,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:15:48,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:15:48,817 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:15:48,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:15:48,817 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:15:48,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:15:48,818 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:15:48,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:15:48,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:15:48,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:15:48,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:15:48,820 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:15:48,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:15:48,820 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:15:48,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:15:48,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:15:48,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:15:48,821 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:15:48,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:15:48,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:15:48,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:15:48,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:15:48,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:15:48,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:15:48,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:15:48,823 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:15:48,823 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:15:48,823 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:15:49,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:15:49,283 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:15:49,288 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:15:49,290 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:15:49,291 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:15:49,292 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-09-24 21:15:49,384 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/73347bb0d/a8e5c9192bda4762a3351d8c8ad74068/FLAG4e218532d [2020-09-24 21:15:50,099 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:15:50,100 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-09-24 21:15:50,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/73347bb0d/a8e5c9192bda4762a3351d8c8ad74068/FLAG4e218532d [2020-09-24 21:15:50,292 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/73347bb0d/a8e5c9192bda4762a3351d8c8ad74068 [2020-09-24 21:15:50,309 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:15:50,315 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:15:50,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:15:50,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:15:50,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:15:50,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:15:50" (1/1) ... [2020-09-24 21:15:50,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:50, skipping insertion in model container [2020-09-24 21:15:50,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:15:50" (1/1) ... [2020-09-24 21:15:50,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:15:50,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:15:50,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:15:50,905 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:15:51,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:15:51,046 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:15:51,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:51 WrapperNode [2020-09-24 21:15:51,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:15:51,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:15:51,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:15:51,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:15:51,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:51" (1/1) ... [2020-09-24 21:15:51,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:51" (1/1) ... [2020-09-24 21:15:51,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:51" (1/1) ... [2020-09-24 21:15:51,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:51" (1/1) ... [2020-09-24 21:15:51,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:51" (1/1) ... [2020-09-24 21:15:51,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:51" (1/1) ... [2020-09-24 21:15:51,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:51" (1/1) ... [2020-09-24 21:15:51,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:15:51,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:15:51,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:15:51,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:15:51,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:15:51,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:15:51,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:15:51,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:15:51,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:15:51,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:15:51,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:15:51,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:15:51,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:15:51,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:15:51,288 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:15:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:15:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:15:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:15:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:15:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 21:15:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:15:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:15:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:15:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:15:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:15:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:15:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:15:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:15:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:15:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:15:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:15:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:15:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:15:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:15:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:15:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:15:51,293 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:15:51,293 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:15:51,293 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:15:51,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:15:51,293 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:15:51,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:15:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:15:51,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:15:51,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:15:51,294 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:15:51,294 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:15:51,294 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:15:51,295 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:15:51,295 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:15:51,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:15:51,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:15:51,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:15:51,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:15:51,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:15:51,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:15:51,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:15:51,296 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:15:51,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:15:51,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:15:51,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:15:51,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:15:51,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:15:51,297 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:15:51,297 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:15:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:15:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:15:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:15:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:15:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:15:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:15:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:15:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:15:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:15:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:15:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:15:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:15:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:15:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:15:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 21:15:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:15:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:15:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:15:51,301 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:15:51,301 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:15:51,301 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:15:51,301 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:15:51,301 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:15:51,301 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:15:51,302 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:15:51,302 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:15:51,302 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:15:51,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:15:51,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:15:51,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:15:52,501 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:15:52,502 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:15:52,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:15:52 BoogieIcfgContainer [2020-09-24 21:15:52,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:15:52,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:15:52,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:15:52,518 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:15:52,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:15:50" (1/3) ... [2020-09-24 21:15:52,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7057990e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:15:52, skipping insertion in model container [2020-09-24 21:15:52,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:51" (2/3) ... [2020-09-24 21:15:52,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7057990e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:15:52, skipping insertion in model container [2020-09-24 21:15:52,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:15:52" (3/3) ... [2020-09-24 21:15:52,522 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2020-09-24 21:15:52,533 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:15:52,546 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:15:52,568 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:15:52,600 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:15:52,600 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:15:52,600 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:15:52,600 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:15:52,601 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:15:52,601 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:15:52,601 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:15:52,601 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:15:52,631 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states. [2020-09-24 21:15:52,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 21:15:52,650 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:15:52,651 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:15:52,652 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:15:52,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:15:52,660 INFO L82 PathProgramCache]: Analyzing trace with hash -382472662, now seen corresponding path program 1 times [2020-09-24 21:15:52,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:15:52,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211659987] [2020-09-24 21:15:52,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:15:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:53,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:53,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:54,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:55,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:55,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:58,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:58,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 21:15:58,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:15:58,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-24 21:15:58,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:58,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:15:58,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:15:58,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-24 21:15:58,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:15:58,647 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:15:58,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:15:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:58,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:58,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:58,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:15:58,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:58,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-09-24 21:15:58,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:58,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:15:58,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:58,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:15:58,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:15:59,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:15:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:59,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:59,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:59,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:15:59,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:59,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:15:59,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:59,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:15:59,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:59,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:15:59,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:15:59,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:15:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:59,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:59,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:59,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:15:59,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:59,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:15:59,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:59,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:15:59,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:59,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:15:59,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:15:59,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:15:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:59,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:59,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:59,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:15:59,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:59,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:15:59,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:59,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:15:59,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:59,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:15:59,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:15:59,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:15:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:59,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:59,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:59,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:15:59,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:59,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:15:59,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:59,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:15:59,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:59,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:15:59,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:15:59,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:15:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:59,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:59,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:59,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:15:59,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:59,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:15:59,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:59,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:15:59,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:59,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:15:59,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:15:59,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 21:15:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:59,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:59,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:59,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:15:59,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:59,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:15:59,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:59,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:15:59,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:59,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:15:59,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:15:59,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:15:59,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211659987] [2020-09-24 21:15:59,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:15:59,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:15:59,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914372749] [2020-09-24 21:15:59,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:15:59,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:15:59,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:15:59,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:15:59,298 INFO L87 Difference]: Start difference. First operand 301 states. Second operand 8 states. [2020-09-24 21:15:59,978 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:16:01,233 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:16:01,567 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:16:01,925 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:02,281 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:02,620 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:03,406 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:16:03,726 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:04,082 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:16:05,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:16:05,321 INFO L93 Difference]: Finished difference Result 578 states and 724 transitions. [2020-09-24 21:16:05,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 21:16:05,325 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 21:16:05,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:16:05,346 INFO L225 Difference]: With dead ends: 578 [2020-09-24 21:16:05,347 INFO L226 Difference]: Without dead ends: 388 [2020-09-24 21:16:05,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:16:05,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-09-24 21:16:05,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 346. [2020-09-24 21:16:05,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-09-24 21:16:05,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 398 transitions. [2020-09-24 21:16:05,492 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 398 transitions. Word has length 142 [2020-09-24 21:16:05,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:16:05,493 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 398 transitions. [2020-09-24 21:16:05,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:16:05,494 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 398 transitions. [2020-09-24 21:16:05,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 21:16:05,500 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:16:05,500 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:16:05,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:16:05,500 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:16:05,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:16:05,501 INFO L82 PathProgramCache]: Analyzing trace with hash 81638099, now seen corresponding path program 1 times [2020-09-24 21:16:05,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:16:05,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [647168290] [2020-09-24 21:16:05,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:16:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:05,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:06,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:10,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:10,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 21:16:10,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:16:10,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 21:16:10,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:10,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:16:10,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 21:16:10,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-24 21:16:10,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:10,956 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:16:10,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:16:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:11,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:11,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:11,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:16:11,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:11,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-24 21:16:11,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:11,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:11,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:11,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 21:16:11,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:11,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:16:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:11,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:11,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:11,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:11,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:11,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:11,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:11,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:11,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:11,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:11,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:11,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:16:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:11,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:11,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:11,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:11,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:11,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:16:11,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:11,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:11,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:11,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:11,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:11,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:16:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:11,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:11,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:11,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:11,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:11,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:16:11,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:11,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:11,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:11,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:11,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:11,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:16:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:11,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:11,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:11,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:11,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:11,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:11,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:11,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:11,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:11,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:11,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:11,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 21:16:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:11,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:11,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:11,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:11,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:16:11,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:16:11,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 21:16:11,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:11,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:11,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:11,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 21:16:11,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:11,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:11,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:11,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:11,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:11,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:16:11,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:16:11,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 21:16:11,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:11,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:11,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:11,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:11,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:11,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:11,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:11,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:11,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:11,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:16:11,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:16:11,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 21:16:11,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:11,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:11,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:11,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:11,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:11,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:16:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:11,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:11,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:11,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:16:11,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:11,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:11,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:11,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:11,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:11,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:11,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:11,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:16:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:11,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:11,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:11,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:16:11,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:11,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:11,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:11,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:11,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:11,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:11,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:11,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 21:16:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:11,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:11,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:11,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:11,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:11,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:16:11,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:11,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:11,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:11,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:11,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:11,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 21:16:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:11,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:11,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:11,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:11,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:11,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:11,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:11,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:11,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:11,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:11,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:11,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:16:11,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [647168290] [2020-09-24 21:16:11,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:16:11,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:16:11,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328481462] [2020-09-24 21:16:11,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:16:11,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:16:11,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:16:11,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:16:11,790 INFO L87 Difference]: Start difference. First operand 346 states and 398 transitions. Second operand 9 states. [2020-09-24 21:16:12,305 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:16:13,795 WARN L193 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 188 [2020-09-24 21:16:14,767 WARN L193 SmtUtils]: Spent 901.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 190 [2020-09-24 21:16:15,089 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:15,434 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:16:15,747 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:16:16,282 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:16:16,630 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-24 21:16:17,084 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:17,864 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:16:19,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:16:19,434 INFO L93 Difference]: Finished difference Result 929 states and 1210 transitions. [2020-09-24 21:16:19,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 21:16:19,435 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-09-24 21:16:19,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:16:19,445 INFO L225 Difference]: With dead ends: 929 [2020-09-24 21:16:19,445 INFO L226 Difference]: Without dead ends: 647 [2020-09-24 21:16:19,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2020-09-24 21:16:19,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2020-09-24 21:16:19,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 535. [2020-09-24 21:16:19,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 535 states. [2020-09-24 21:16:19,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 623 transitions. [2020-09-24 21:16:19,593 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 623 transitions. Word has length 190 [2020-09-24 21:16:19,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:16:19,597 INFO L479 AbstractCegarLoop]: Abstraction has 535 states and 623 transitions. [2020-09-24 21:16:19,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:16:19,597 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 623 transitions. [2020-09-24 21:16:19,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 21:16:19,603 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:16:19,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:16:19,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:16:19,605 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:16:19,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:16:19,605 INFO L82 PathProgramCache]: Analyzing trace with hash -441390253, now seen corresponding path program 1 times [2020-09-24 21:16:19,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:16:19,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1397928706] [2020-09-24 21:16:19,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:16:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:19,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:20,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:20,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 21:16:20,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:20,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 740 [2020-09-24 21:16:20,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:20,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:20,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-09-24 21:16:20,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:16:20,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:20,765 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:16:20,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:16:20,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:20,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:20,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:20,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:16:20,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:20,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 21:16:20,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:20,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:20,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:20,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:20,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:20,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:16:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:20,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:20,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:20,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:20,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:20,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:20,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:20,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:20,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:20,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:20,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:20,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:16:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:20,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:20,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:20,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:20,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:20,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:20,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:20,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:20,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:20,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:20,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:16:20,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:16:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:20,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:20,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:20,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:20,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:20,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:20,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:20,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:20,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:20,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:20,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:20,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:16:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:20,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:20,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:20,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:20,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:20,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:16:20,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:20,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:20,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:20,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:20,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:20,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:16:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:20,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:20,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:20,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:16:20,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:20,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:20,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:20,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:20,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:20,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:20,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:20,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 21:16:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:20,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:21,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:21,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:16:21,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:21,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 21:16:21,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:21,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:21,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 21:16:21,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:16:21,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:21,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:21,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:21,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:21,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:16:21,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:21,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 21:16:21,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:21,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:21,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:16:21,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:16:21,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:21,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:21,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:21,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:21,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:16:21,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:21,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 21:16:21,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:21,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:21,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:16:21,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:16:21,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:21,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:16:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:21,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:21,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:21,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:16:21,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:21,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:16:21,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:21,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:16:21,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:21,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:21,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:21,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:16:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:21,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:21,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:21,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:16:21,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:21,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:21,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:21,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:21,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:16:21,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:21,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:21,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 21:16:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:21,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:21,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:21,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:21,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:21,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:21,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:21,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:21,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:21,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:21,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:21,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 21:16:21,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:21,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:21,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:21,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:21,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:21,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:21,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:21,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:21,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:21,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:21,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:21,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:16:21,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1397928706] [2020-09-24 21:16:21,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:16:21,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:16:21,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149636069] [2020-09-24 21:16:21,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:16:21,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:16:21,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:16:21,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:16:21,314 INFO L87 Difference]: Start difference. First operand 535 states and 623 transitions. Second operand 9 states. [2020-09-24 21:16:22,516 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:16:22,824 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:16:23,159 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:23,513 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:16:23,833 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:25,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:16:25,153 INFO L93 Difference]: Finished difference Result 1151 states and 1478 transitions. [2020-09-24 21:16:25,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 21:16:25,154 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 195 [2020-09-24 21:16:25,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:16:25,160 INFO L225 Difference]: With dead ends: 1151 [2020-09-24 21:16:25,161 INFO L226 Difference]: Without dead ends: 726 [2020-09-24 21:16:25,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 21:16:25,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2020-09-24 21:16:25,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 547. [2020-09-24 21:16:25,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2020-09-24 21:16:25,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 635 transitions. [2020-09-24 21:16:25,236 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 635 transitions. Word has length 195 [2020-09-24 21:16:25,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:16:25,237 INFO L479 AbstractCegarLoop]: Abstraction has 547 states and 635 transitions. [2020-09-24 21:16:25,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:16:25,237 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 635 transitions. [2020-09-24 21:16:25,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-24 21:16:25,240 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:16:25,241 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:16:25,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:16:25,241 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:16:25,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:16:25,242 INFO L82 PathProgramCache]: Analyzing trace with hash -735391491, now seen corresponding path program 1 times [2020-09-24 21:16:25,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:16:25,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524224497] [2020-09-24 21:16:25,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:16:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:25,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:25,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:25,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:25,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:27,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:27,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:30,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:30,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-09-24 21:16:30,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:16:30,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-09-24 21:16:30,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:30,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:30,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 21:16:30,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:16:30,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:30,760 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:16:30,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:16:30,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:30,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:31,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:31,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:16:31,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:31,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-24 21:16:31,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:31,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:31,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:31,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 21:16:31,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:31,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:16:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:31,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:31,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:31,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:31,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:31,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:31,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:31,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:31,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:31,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:31,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:31,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:16:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:31,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:31,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:31,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:31,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:31,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:31,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:31,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:31,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:31,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:31,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:31,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:16:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:31,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:31,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:31,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:31,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:31,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:16:31,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:31,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:31,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:31,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:31,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:31,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:16:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:31,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:31,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:31,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:31,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:31,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:31,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:31,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:31,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:31,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:31,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:31,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:16:31,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:31,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:31,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:31,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:16:31,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:31,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:16:31,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:31,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:31,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:31,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:16:31,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:31,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:16:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:31,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:31,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:31,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:16:31,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:31,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 21:16:31,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:31,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:31,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 21:16:31,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 21:16:31,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:31,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:31,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:31,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:31,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:16:31,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:31,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:16:31,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:31,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:31,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:31,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 21:16:31,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:31,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:31,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:31,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:31,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:31,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:31,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:31,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:31,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:31,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:31,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:31,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:31,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 21:16:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:31,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:31,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:31,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:31,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:16:31,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:16:31,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 21:16:31,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:31,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:16:31,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 21:16:31,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:16:31,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:31,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:31,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:31,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:31,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:16:31,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:31,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 21:16:31,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:31,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:16:31,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 21:16:31,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:16:31,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:31,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:31,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:31,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:31,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:16:31,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:31,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 21:16:31,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:31,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:31,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:31,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:16:31,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:31,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:16:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:31,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:31,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:31,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:16:31,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:31,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:16:31,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:31,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:31,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:31,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:31,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:31,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:16:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:31,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:31,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:31,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:16:31,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:31,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:31,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:31,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:31,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:16:31,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:31,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:31,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 21:16:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:31,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:31,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:31,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:31,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:31,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:31,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:31,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:31,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:31,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:31,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:31,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-09-24 21:16:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:31,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:31,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:31,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:31,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:31,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:31,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:31,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:31,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:31,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:31,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:31,675 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:16:31,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524224497] [2020-09-24 21:16:31,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:16:31,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 21:16:31,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745465789] [2020-09-24 21:16:31,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 21:16:31,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:16:31,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 21:16:31,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-09-24 21:16:31,679 INFO L87 Difference]: Start difference. First operand 547 states and 635 transitions. Second operand 13 states. [2020-09-24 21:16:32,242 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:16:33,386 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:33,715 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:16:34,038 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 21:16:34,348 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:16:34,666 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:16:34,958 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:16:36,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:16:36,523 INFO L93 Difference]: Finished difference Result 1214 states and 1553 transitions. [2020-09-24 21:16:36,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 21:16:36,523 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 220 [2020-09-24 21:16:36,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:16:36,528 INFO L225 Difference]: With dead ends: 1214 [2020-09-24 21:16:36,529 INFO L226 Difference]: Without dead ends: 777 [2020-09-24 21:16:36,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 21:16:36,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2020-09-24 21:16:36,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 563. [2020-09-24 21:16:36,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2020-09-24 21:16:36,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 645 transitions. [2020-09-24 21:16:36,599 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 645 transitions. Word has length 220 [2020-09-24 21:16:36,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:16:36,600 INFO L479 AbstractCegarLoop]: Abstraction has 563 states and 645 transitions. [2020-09-24 21:16:36,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 21:16:36,600 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 645 transitions. [2020-09-24 21:16:36,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 21:16:36,603 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:16:36,603 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:16:36,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:16:36,604 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:16:36,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:16:36,604 INFO L82 PathProgramCache]: Analyzing trace with hash -2081684234, now seen corresponding path program 1 times [2020-09-24 21:16:36,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:16:36,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699836328] [2020-09-24 21:16:36,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:16:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:36,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:37,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:37,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 21:16:37,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:37,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1270 [2020-09-24 21:16:37,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:37,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:16:37,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:16:37,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-24 21:16:37,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:38,227 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:16:38,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:16:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:38,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:38,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:38,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:16:38,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:38,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-24 21:16:38,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:38,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:38,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:38,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:16:38,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:38,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:16:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:38,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:38,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:38,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:38,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:38,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:38,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:38,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:38,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:38,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:38,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:38,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:16:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:38,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:38,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:38,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:38,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:38,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:38,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:38,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:38,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:38,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:38,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:38,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:16:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:38,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:38,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:38,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:38,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:38,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:16:38,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:38,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:38,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:38,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:38,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:38,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:16:38,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:38,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:38,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:38,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:38,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:38,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:38,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:38,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:38,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:38,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:38,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:38,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:16:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:38,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:38,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:38,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:16:38,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:38,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:16:38,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:38,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:38,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:38,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:16:38,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:38,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 21:16:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:38,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:38,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:38,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:16:38,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:38,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 21:16:38,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:38,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:38,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 21:16:38,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 21:16:38,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:38,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:38,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:38,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:38,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:16:38,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:38,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 21:16:38,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:38,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:38,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:38,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:16:38,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:38,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:38,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:38,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:38,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:38,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:16:38,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:38,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 21:16:38,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:38,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:38,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:38,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:16:38,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:38,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:16:38,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:38,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:38,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:38,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:16:38,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:38,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:16:38,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:38,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:38,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:38,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:16:38,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:38,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:16:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:38,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:38,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:38,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:16:38,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:38,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:38,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:38,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:38,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:38,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:16:38,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:38,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 21:16:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:38,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:38,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:38,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:38,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:38,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:38,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:38,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:38,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:38,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:38,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:38,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 21:16:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:38,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:38,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:38,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:38,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:38,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:38,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:38,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:38,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:38,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:38,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:38,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:16:38,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699836328] [2020-09-24 21:16:38,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:16:38,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:16:38,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645246364] [2020-09-24 21:16:38,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:16:38,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:16:38,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:16:38,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:16:38,803 INFO L87 Difference]: Start difference. First operand 563 states and 645 transitions. Second operand 7 states. [2020-09-24 21:16:39,352 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186