/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:18:45,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:18:45,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:18:45,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:18:45,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:18:45,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:18:45,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:18:45,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:18:45,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:18:45,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:18:45,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:18:45,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:18:45,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:18:45,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:18:45,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:18:45,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:18:45,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:18:45,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:18:45,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:18:45,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:18:45,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:18:45,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:18:45,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:18:45,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:18:45,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:18:45,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:18:45,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:18:45,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:18:45,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:18:45,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:18:45,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:18:45,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:18:45,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:18:45,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:18:45,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:18:45,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:18:45,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:18:45,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:18:45,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:18:45,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:18:45,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:18:45,412 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:18:45,453 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:18:45,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:18:45,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:18:45,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:18:45,457 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:18:45,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:18:45,458 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:18:45,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:18:45,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:18:45,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:18:45,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:18:45,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:18:45,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:18:45,460 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:18:45,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:18:45,462 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:18:45,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:18:45,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:18:45,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:18:45,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:18:45,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:18:45,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:18:45,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:18:45,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:18:45,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:18:45,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:18:45,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:18:45,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:18:45,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:18:45,465 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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:18:45,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:18:45,951 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:18:45,956 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:18:45,958 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:18:45,958 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:18:45,960 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-09-25 06:18:46,038 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/24326b37f/440e02ada25141748718748f6a11570e/FLAGbad41552b [2020-09-25 06:18:46,723 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:18:46,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-09-25 06:18:46,740 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/24326b37f/440e02ada25141748718748f6a11570e/FLAGbad41552b [2020-09-25 06:18:46,918 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/24326b37f/440e02ada25141748718748f6a11570e [2020-09-25 06:18:46,930 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:18:46,935 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:18:46,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:18:46,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:18:46,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:18:46,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:18:46" (1/1) ... [2020-09-25 06:18:46,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@623015b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:46, skipping insertion in model container [2020-09-25 06:18:46,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:18:46" (1/1) ... [2020-09-25 06:18:46,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:18:47,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:18:47,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:18:47,474 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:18:47,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:18:47,602 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:18:47,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:47 WrapperNode [2020-09-25 06:18:47,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:18:47,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:18:47,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:18:47,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:18:47,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:47" (1/1) ... [2020-09-25 06:18:47,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:47" (1/1) ... [2020-09-25 06:18:47,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:47" (1/1) ... [2020-09-25 06:18:47,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:47" (1/1) ... [2020-09-25 06:18:47,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:47" (1/1) ... [2020-09-25 06:18:47,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:47" (1/1) ... [2020-09-25 06:18:47,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:47" (1/1) ... [2020-09-25 06:18:47,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:18:47,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:18:47,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:18:47,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:18:47,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:18:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:18:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:18:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:18:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 06:18:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:18:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:18:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:18:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:18:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:18:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:18:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:18:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:18:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:18:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:18:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:18:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:18:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:18:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:18:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:18:47,791 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:18:47,791 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:18:47,791 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:18:47,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:18:47,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:18:47,792 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:18:47,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:18:47,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 06:18:47,792 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:18:47,792 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:18:47,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:18:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:18:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:18:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:18:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:18:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:18:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:18:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:18:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:18:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:18:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 06:18:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:18:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:18:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:18:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:18:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:18:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:18:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:18:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 06:18:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:18:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:18:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:18:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:18:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:18:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:18:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:18:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:18:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:18:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:18:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:18:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:18:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:18:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:18:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:18:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:18:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:18:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:18:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:18:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:18:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:18:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:18:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:18:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:18:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:18:47,800 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:18:47,800 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:18:47,800 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:18:47,800 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:18:47,800 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 06:18:47,800 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:18:47,801 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:18:47,801 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:18:47,801 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:18:47,801 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:18:47,801 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:18:47,801 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:18:47,801 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 06:18:47,802 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:18:47,802 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:18:47,802 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:18:47,802 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:18:47,802 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:18:47,802 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:18:47,802 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:18:47,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:18:47,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:18:47,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:18:48,958 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:18:48,958 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:18:48,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:18:48 BoogieIcfgContainer [2020-09-25 06:18:48,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:18:48,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:18:48,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:18:48,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:18:48,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:18:46" (1/3) ... [2020-09-25 06:18:48,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34785850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:18:48, skipping insertion in model container [2020-09-25 06:18:48,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:47" (2/3) ... [2020-09-25 06:18:48,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34785850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:18:48, skipping insertion in model container [2020-09-25 06:18:48,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:18:48" (3/3) ... [2020-09-25 06:18:48,977 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product57.cil.c [2020-09-25 06:18:48,990 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:18:49,003 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:18:49,028 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:18:49,067 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:18:49,067 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:18:49,067 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:18:49,068 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:18:49,068 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:18:49,068 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:18:49,068 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:18:49,068 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:18:49,101 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states. [2020-09-25 06:18:49,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 06:18:49,120 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:18:49,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:18:49,123 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:18:49,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:18:49,132 INFO L82 PathProgramCache]: Analyzing trace with hash 324352486, now seen corresponding path program 1 times [2020-09-25 06:18:49,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:18:49,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1888846491] [2020-09-25 06:18:49,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:18:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:49,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:49,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:50,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:51,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:51,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:54,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:54,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 06:18:54,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:18:54,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 06:18:54,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:54,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:54,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:54,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:18:54,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:54,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 06:18:55,160 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:18:55,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:18:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:55,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:55,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:55,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:18:55,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:55,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-25 06:18:55,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:55,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:55,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:55,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:55,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:55,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:55,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:18:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:55,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:55,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:55,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:55,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:55,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:55,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:55,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:55,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:55,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:55,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:55,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:55,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:18:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:55,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:55,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:55,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:55,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:55,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:18:55,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:55,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:55,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:55,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:55,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:55,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:55,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:18:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:55,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:55,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:55,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:55,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:55,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:18:55,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:55,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:55,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:55,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:55,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:55,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:55,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:18:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:55,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:55,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:55,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:55,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:55,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:55,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:55,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:55,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:55,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:55,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:55,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:55,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 06:18:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:55,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:55,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:55,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:55,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:55,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:18:55,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:55,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:55,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:55,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:55,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:55,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:55,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:18:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:55,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:55,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:55,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:55,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:55,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:18:55,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:55,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:55,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:55,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:55,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:55,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:55,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:18:55,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1888846491] [2020-09-25 06:18:55,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:18:55,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:18:55,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550475378] [2020-09-25 06:18:55,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:18:55,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:18:55,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:18:55,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:18:55,654 INFO L87 Difference]: Start difference. First operand 329 states. Second operand 3 states. [2020-09-25 06:18:57,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:18:57,310 INFO L93 Difference]: Finished difference Result 525 states and 620 transitions. [2020-09-25 06:18:57,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:18:57,314 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 06:18:57,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:18:57,338 INFO L225 Difference]: With dead ends: 525 [2020-09-25 06:18:57,338 INFO L226 Difference]: Without dead ends: 321 [2020-09-25 06:18:57,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:18:57,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-09-25 06:18:57,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 278. [2020-09-25 06:18:57,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-09-25 06:18:57,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 302 transitions. [2020-09-25 06:18:57,566 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 302 transitions. Word has length 142 [2020-09-25 06:18:57,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:18:57,567 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 302 transitions. [2020-09-25 06:18:57,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:18:57,568 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 302 transitions. [2020-09-25 06:18:57,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 06:18:57,572 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:18:57,573 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] [2020-09-25 06:18:57,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:18:57,573 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:18:57,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:18:57,574 INFO L82 PathProgramCache]: Analyzing trace with hash 173272106, now seen corresponding path program 1 times [2020-09-25 06:18:57,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:18:57,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037216055] [2020-09-25 06:18:57,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:18:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:57,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:57,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:58,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:58,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:59,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:02,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:02,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 06:19:02,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:19:02,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 06:19:02,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:02,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:02,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:02,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 06:19:02,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 06:19:02,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:03,005 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:19:03,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:03,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:03,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:03,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:19:03,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:03,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 06:19:03,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:03,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:03,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:03,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:03,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 06:19:03,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:03,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:19:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:03,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:03,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:03,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:03,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:03,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:03,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:03,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:03,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:03,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:03,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:19:03,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:03,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:19:03,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:03,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:03,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:03,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:03,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:03,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:19:03,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:03,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:03,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:03,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:03,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:19:03,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:03,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:19:03,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:03,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:03,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:03,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:03,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:03,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:19:03,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:03,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:03,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:03,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:03,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:19:03,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:03,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:19:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:03,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:03,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:03,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:03,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:03,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:19:03,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:03,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:03,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:03,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:03,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:19:03,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:03,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:19:03,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:03,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:03,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:03,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:03,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:03,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:03,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:03,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:03,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:03,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:03,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:03,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:03,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:19:03,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:03,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:03,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:03,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:03,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:03,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:03,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:03,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:03,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:03,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:03,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:03,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:03,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:19:03,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1037216055] [2020-09-25 06:19:03,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:19:03,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:19:03,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628233456] [2020-09-25 06:19:03,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:19:03,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:03,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:19:03,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:19:03,405 INFO L87 Difference]: Start difference. First operand 278 states and 302 transitions. Second operand 4 states. [2020-09-25 06:19:03,942 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:19:05,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:05,075 INFO L93 Difference]: Finished difference Result 489 states and 561 transitions. [2020-09-25 06:19:05,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:19:05,076 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 06:19:05,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:05,081 INFO L225 Difference]: With dead ends: 489 [2020-09-25 06:19:05,081 INFO L226 Difference]: Without dead ends: 321 [2020-09-25 06:19:05,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:19:05,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-09-25 06:19:05,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 278. [2020-09-25 06:19:05,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-09-25 06:19:05,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 301 transitions. [2020-09-25 06:19:05,133 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 301 transitions. Word has length 143 [2020-09-25 06:19:05,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:05,134 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 301 transitions. [2020-09-25 06:19:05,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:19:05,134 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 301 transitions. [2020-09-25 06:19:05,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 06:19:05,137 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:05,137 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:19:05,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:19:05,137 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:05,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:05,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1427031856, now seen corresponding path program 1 times [2020-09-25 06:19:05,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:05,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [152258119] [2020-09-25 06:19:05,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:05,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:05,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:05,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:05,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:10,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 06:19:10,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:19:10,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 06:19:10,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:10,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:10,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:10,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 06:19:10,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:19:10,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:10,499 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:19:10,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:10,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:10,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:19:10,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:10,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 06:19:10,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:10,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:10,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:10,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:10,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:10,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:10,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:19:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:10,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:10,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:10,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:10,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:10,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:10,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:10,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:10,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:10,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:10,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:10,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:19:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:10,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:10,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:10,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:10,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:10,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:10,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:10,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:10,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:10,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:10,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:10,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:19:10,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:10,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:10,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:10,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:10,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:10,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:10,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:10,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:10,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:10,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:10,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:10,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:19:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:10,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:10,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:10,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:10,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:10,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:10,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:10,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:10,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:10,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:10,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:10,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 06:19:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:10,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:10,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 06:19:10,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:19:10,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:19:10,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:10,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:10,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:10,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 06:19:10,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:10,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:10,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:10,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:10,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:19:10,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:10,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:10,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:10,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:10,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:10,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:10,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:10,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:10,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:10,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:10,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:10,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:10,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:10,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:10,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:10,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:10,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:10,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:10,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:10,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 06:19:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:10,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:10,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:10,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:10,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:10,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:10,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:10,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:10,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:10,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:10,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:10,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 06:19:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:10,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:10,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:10,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:10,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:10,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:10,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:10,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:10,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:10,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:10,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:10,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:19:10,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [152258119] [2020-09-25 06:19:10,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:19:10,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:19:10,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408128418] [2020-09-25 06:19:10,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:19:10,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:10,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:19:10,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:19:10,771 INFO L87 Difference]: Start difference. First operand 278 states and 301 transitions. Second operand 5 states. [2020-09-25 06:19:11,658 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:19:13,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:13,051 INFO L93 Difference]: Finished difference Result 466 states and 529 transitions. [2020-09-25 06:19:13,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:19:13,051 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 06:19:13,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:13,060 INFO L225 Difference]: With dead ends: 466 [2020-09-25 06:19:13,060 INFO L226 Difference]: Without dead ends: 328 [2020-09-25 06:19:13,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:19:13,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-09-25 06:19:13,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 268. [2020-09-25 06:19:13,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-25 06:19:13,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 288 transitions. [2020-09-25 06:19:13,110 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 288 transitions. Word has length 156 [2020-09-25 06:19:13,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:13,110 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 288 transitions. [2020-09-25 06:19:13,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:19:13,111 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 288 transitions. [2020-09-25 06:19:13,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 06:19:13,113 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:13,114 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:19:13,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:19:13,114 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:13,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:13,115 INFO L82 PathProgramCache]: Analyzing trace with hash 2053095868, now seen corresponding path program 1 times [2020-09-25 06:19:13,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:13,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913512829] [2020-09-25 06:19:13,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:13,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:13,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:13,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:14,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:15,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:16,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:16,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:18,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:18,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 06:19:18,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:19:18,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 06:19:18,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:18,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:18,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:19:18,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 06:19:18,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 06:19:18,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:18,491 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:19:18,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:18,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:18,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:18,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:19:18,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:18,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 06:19:18,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:18,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:18,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:18,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:18,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:18,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:18,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:19:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:18,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:18,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:18,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:18,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:18,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:18,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:18,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:18,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:18,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:18,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:18,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:18,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:19:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:18,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:18,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:18,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:18,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:18,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:18,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:18,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:18,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:18,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:18,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:18,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:18,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:19:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:18,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:18,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:18,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:18,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:18,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:19:18,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:18,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:18,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:18,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:18,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:18,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:18,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:19:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:18,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:18,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:18,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:18,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:18,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:18,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:18,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:18,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:18,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:18,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:18,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:18,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 06:19:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:18,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:18,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:18,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:18,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 06:19:18,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:19:18,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 06:19:18,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:18,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:18,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:19:18,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:19:18,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:19:18,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:18,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:18,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:18,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:18,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:19:18,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:18,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:19:18,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:18,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:18,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:19:18,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:19:18,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:19:18,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:18,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:18,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:18,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:18,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:18,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:18,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:18,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:18,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:18,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:18,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:18,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:19:18,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:18,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 06:19:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:18,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:18,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:18,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:18,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:18,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:18,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:18,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:18,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:18,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:18,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:18,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:18,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 06:19:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:18,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:18,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:18,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:18,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:18,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:18,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:18,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:18,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:18,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:18,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:18,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:18,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:19:18,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913512829] [2020-09-25 06:19:18,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:19:18,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:19:18,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608102402] [2020-09-25 06:19:18,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:19:18,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:18,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:19:18,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:19:18,827 INFO L87 Difference]: Start difference. First operand 268 states and 288 transitions. Second operand 6 states. [2020-09-25 06:19:19,311 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:19:20,855 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:19:21,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:21,884 INFO L93 Difference]: Finished difference Result 593 states and 675 transitions. [2020-09-25 06:19:21,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:19:21,884 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-09-25 06:19:21,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:21,890 INFO L225 Difference]: With dead ends: 593 [2020-09-25 06:19:21,890 INFO L226 Difference]: Without dead ends: 435 [2020-09-25 06:19:21,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:19:21,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-09-25 06:19:21,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 376. [2020-09-25 06:19:21,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-09-25 06:19:21,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 405 transitions. [2020-09-25 06:19:21,953 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 405 transitions. Word has length 165 [2020-09-25 06:19:21,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:21,953 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 405 transitions. [2020-09-25 06:19:21,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:19:21,954 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 405 transitions. [2020-09-25 06:19:21,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 06:19:21,957 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:21,957 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] [2020-09-25 06:19:21,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:19:21,957 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:21,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:21,958 INFO L82 PathProgramCache]: Analyzing trace with hash 2027625623, now seen corresponding path program 1 times [2020-09-25 06:19:21,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:21,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571173492] [2020-09-25 06:19:21,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:22,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:22,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:23,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:23,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:24,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:27,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:27,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-25 06:19:27,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:19:27,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 06:19:27,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:27,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:27,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:19:27,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 06:19:27,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 06:19:27,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:27,378 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:19:27,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:27,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:27,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:27,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:19:27,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:27,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 06:19:27,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:27,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:27,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:27,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:27,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:27,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:27,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:19:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:27,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:27,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:27,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:27,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:27,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:27,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:27,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:27,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:27,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:19:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:27,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:27,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:27,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:27,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:27,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:27,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:27,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:27,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:27,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:27,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:27,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:27,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:19:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:27,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:27,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:27,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:27,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:27,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:27,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:27,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:27,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:27,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:27,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:27,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:27,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:19:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:27,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:27,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:27,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:27,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:27,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:27,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:27,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:27,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:27,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:27,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:27,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:27,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 06:19:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:27,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:27,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:27,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:27,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:19:27,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:19:27,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 06:19:27,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:27,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:27,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:27,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:27,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:19:27,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:27,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:27,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:27,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:27,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:19:27,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:27,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 06:19:27,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:27,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:27,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:27,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:27,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:19:27,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:27,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:27,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:27,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:27,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:19:27,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:27,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:19:27,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:27,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:27,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:27,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:27,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 06:19:27,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:27,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:19:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:27,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:27,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:27,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:19:27,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:27,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:27,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:27,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:27,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:27,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:27,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:27,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:27,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:19:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:27,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:27,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:27,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:27,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:27,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:27,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:27,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:27,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:27,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:27,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:19:27,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:27,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 06:19:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:27,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:27,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:27,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:27,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:27,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:27,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:27,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:27,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:27,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:27,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:19:27,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:27,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 06:19:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:27,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:27,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:27,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:27,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:27,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:19:27,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:27,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:27,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:19:27,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:27,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:19:27,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:27,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:19:27,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571173492] [2020-09-25 06:19:27,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:19:27,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:19:27,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016974026] [2020-09-25 06:19:27,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:19:27,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:27,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:19:27,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:19:27,781 INFO L87 Difference]: Start difference. First operand 376 states and 405 transitions. Second operand 9 states. [2020-09-25 06:19:28,358 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:19:29,948 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:19:30,254 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:19:30,595 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:19:31,641 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:19:32,006 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:19:32,335 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:19:32,662 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:19:32,971 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:19:33,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:33,183 INFO L93 Difference]: Finished difference Result 438 states and 489 transitions. [2020-09-25 06:19:33,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:19:33,184 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 189 [2020-09-25 06:19:33,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:33,188 INFO L225 Difference]: With dead ends: 438 [2020-09-25 06:19:33,188 INFO L226 Difference]: Without dead ends: 435 [2020-09-25 06:19:33,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 06:19:33,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-09-25 06:19:33,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 376. [2020-09-25 06:19:33,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-09-25 06:19:33,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 404 transitions. [2020-09-25 06:19:33,245 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 404 transitions. Word has length 189 [2020-09-25 06:19:33,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:33,258 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 404 transitions. [2020-09-25 06:19:33,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:19:33,258 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 404 transitions. [2020-09-25 06:19:33,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 06:19:33,261 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:33,261 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:19:33,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:19:33,262 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:33,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:33,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1842346287, now seen corresponding path program 1 times [2020-09-25 06:19:33,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:33,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1148959355] [2020-09-25 06:19:33,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:33,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:33,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:33,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking...