/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=DEEPEST --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_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:37:55,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:37:55,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:37:55,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:37:55,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:37:55,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:37:55,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:37:55,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:37:55,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:37:55,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:37:55,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:37:55,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:37:55,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:37:55,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:37:55,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:37:55,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:37:55,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:37:55,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:37:55,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:37:55,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:37:55,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:37:55,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:37:55,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:37:55,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:37:55,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:37:55,598 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:37:55,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:37:55,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:37:55,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:37:55,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:37:55,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:37:55,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:37:55,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:37:55,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:37:55,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:37:55,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:37:55,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:37:55,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:37:55,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:37:55,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:37:55,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:37:55,611 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 00:37:55,642 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:37:55,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:37:55,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:37:55,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:37:55,645 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:37:55,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:37:55,647 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:37:55,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:37:55,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:37:55,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:37:55,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:37:55,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:37:55,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:37:55,649 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:37:55,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:37:55,649 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:37:55,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:37:55,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:37:55,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:37:55,650 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:37:55,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:37:55,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:37:55,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:37:55,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:37:55,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:37:55,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:37:55,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:37:55,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:37:55,652 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:37:55,652 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:37:56,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:37:56,145 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:37:56,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:37:56,152 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:37:56,152 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:37:56,153 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product46.cil.c [2020-09-25 00:37:56,246 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/decdc5f02/b1ddddff06284670b0be4d91e35128f6/FLAGd7c4a9217 [2020-09-25 00:37:56,867 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:37:56,868 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product46.cil.c [2020-09-25 00:37:56,888 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/decdc5f02/b1ddddff06284670b0be4d91e35128f6/FLAGd7c4a9217 [2020-09-25 00:37:57,103 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/decdc5f02/b1ddddff06284670b0be4d91e35128f6 [2020-09-25 00:37:57,117 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:37:57,124 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:37:57,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:37:57,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:37:57,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:37:57,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:37:57" (1/1) ... [2020-09-25 00:37:57,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@823e3a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:57, skipping insertion in model container [2020-09-25 00:37:57,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:37:57" (1/1) ... [2020-09-25 00:37:57,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:37:57,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:37:57,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:37:57,649 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:37:57,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:37:57,919 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:37:57,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:57 WrapperNode [2020-09-25 00:37:57,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:37:57,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:37:57,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:37:57,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:37:57,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:57" (1/1) ... [2020-09-25 00:37:57,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:57" (1/1) ... [2020-09-25 00:37:57,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:57" (1/1) ... [2020-09-25 00:37:57,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:57" (1/1) ... [2020-09-25 00:37:57,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:57" (1/1) ... [2020-09-25 00:37:58,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:57" (1/1) ... [2020-09-25 00:37:58,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:57" (1/1) ... [2020-09-25 00:37:58,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:37:58,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:37:58,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:37:58,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:37:58,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:57" (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 00:37:58,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:37:58,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:37:58,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:37:58,145 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:37:58,145 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:37:58,145 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:37:58,146 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 00:37:58,146 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:37:58,146 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 00:37:58,146 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:37:58,146 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:37:58,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:37:58,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:37:58,147 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:37:58,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:37:58,147 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 00:37:58,148 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:37:58,148 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:37:58,148 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:37:58,148 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:37:58,149 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:37:58,149 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:37:58,149 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:37:58,149 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:37:58,149 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:37:58,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:37:58,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 00:37:58,150 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:37:58,150 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:37:58,150 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:37:58,150 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:37:58,150 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:37:58,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:37:58,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:37:58,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:37:58,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:37:58,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:37:58,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:37:58,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:37:58,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:37:58,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:37:58,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:37:58,152 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:37:58,153 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:37:58,153 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:37:58,153 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 00:37:58,153 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:37:58,153 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:37:58,153 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:37:58,154 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:37:58,154 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:37:58,154 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:37:58,154 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:37:58,154 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:37:58,155 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:37:58,155 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:37:58,155 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:37:58,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 00:37:58,155 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:37:58,155 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:37:58,155 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:37:58,156 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 00:37:58,156 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:37:58,156 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 00:37:58,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:37:58,156 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:37:58,156 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:37:58,157 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:37:58,157 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:37:58,157 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:37:58,157 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:37:58,157 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:37:58,157 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:37:58,158 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:37:58,158 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:37:58,158 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:37:58,158 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:37:58,158 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:37:58,158 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:37:58,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:37:58,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:37:58,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:37:58,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:37:58,159 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:37:58,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:37:58,160 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:37:58,160 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:37:58,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:37:58,160 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:37:58,160 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:37:58,160 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:37:58,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:37:58,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:37:58,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:37:59,378 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:37:59,378 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:37:59,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:37:59 BoogieIcfgContainer [2020-09-25 00:37:59,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:37:59,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:37:59,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:37:59,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:37:59,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:37:57" (1/3) ... [2020-09-25 00:37:59,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d3f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:37:59, skipping insertion in model container [2020-09-25 00:37:59,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:57" (2/3) ... [2020-09-25 00:37:59,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d3f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:37:59, skipping insertion in model container [2020-09-25 00:37:59,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:37:59" (3/3) ... [2020-09-25 00:37:59,395 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product46.cil.c [2020-09-25 00:37:59,408 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:37:59,419 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:37:59,444 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:37:59,477 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:37:59,477 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:37:59,478 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:37:59,478 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:37:59,478 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:37:59,478 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:37:59,478 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:37:59,478 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:37:59,509 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states. [2020-09-25 00:37:59,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 00:37:59,528 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:37:59,530 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 00:37:59,530 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:37:59,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:37:59,539 INFO L82 PathProgramCache]: Analyzing trace with hash 349586246, now seen corresponding path program 1 times [2020-09-25 00:37:59,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:37:59,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572735676] [2020-09-25 00:37:59,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:37:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:00,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:00,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:01,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:02,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:04,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:04,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:04,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 00:38:04,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:38:04,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 00:38:04,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:04,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:38:04,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-25 00:38:04,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:38:04,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:38:05,476 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:38:05,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:38:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:05,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:05,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:05,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:38:05,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:05,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-25 00:38:05,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:05,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:05,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:05,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:05,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:05,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:38:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:05,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:05,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:05,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:05,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:05,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:05,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:05,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:05,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:05,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:05,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:05,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:38:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:05,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:05,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:05,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:05,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:05,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:05,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:05,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:05,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:05,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:05,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:05,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:38:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:05,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:05,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:05,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:05,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:05,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:38:05,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:05,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:05,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:05,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:05,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:05,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:38:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:05,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:05,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:05,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:05,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:05,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:05,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:05,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:05,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:05,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:05,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:05,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:38:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:05,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:05,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:05,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:05,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:05,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:38:05,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:05,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:38:05,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:05,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:38:05,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:05,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 00:38:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:05,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:05,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:05,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:05,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:05,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:38:05,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:05,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:05,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:05,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:38:05,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:05,927 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 00:38:05,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572735676] [2020-09-25 00:38:05,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:38:05,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:38:05,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867078764] [2020-09-25 00:38:05,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:38:05,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:38:05,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:38:05,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:38:05,972 INFO L87 Difference]: Start difference. First operand 314 states. Second operand 8 states. [2020-09-25 00:38:06,724 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:38:08,177 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:08,608 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:38:09,067 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:09,355 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:38:09,619 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:10,646 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:38:10,916 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:11,332 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:12,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:38:12,394 INFO L93 Difference]: Finished difference Result 619 states and 770 transitions. [2020-09-25 00:38:12,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:38:12,397 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 00:38:12,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:38:12,432 INFO L225 Difference]: With dead ends: 619 [2020-09-25 00:38:12,433 INFO L226 Difference]: Without dead ends: 416 [2020-09-25 00:38:12,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:38:12,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-25 00:38:12,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 373. [2020-09-25 00:38:12,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-09-25 00:38:12,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 427 transitions. [2020-09-25 00:38:12,580 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 427 transitions. Word has length 142 [2020-09-25 00:38:12,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:38:12,581 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 427 transitions. [2020-09-25 00:38:12,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:38:12,582 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 427 transitions. [2020-09-25 00:38:12,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 00:38:12,593 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:38:12,593 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] [2020-09-25 00:38:12,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:38:12,594 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:38:12,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:38:12,594 INFO L82 PathProgramCache]: Analyzing trace with hash -999610643, now seen corresponding path program 1 times [2020-09-25 00:38:12,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:38:12,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811296073] [2020-09-25 00:38:12,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:38:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:12,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:12,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:14,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:14,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:17,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:17,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-25 00:38:17,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:38:17,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 00:38:17,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:17,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:38:17,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 191 [2020-09-25 00:38:17,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 00:38:17,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:17,946 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:38:17,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:38:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:17,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:18,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:18,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:38:18,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:18,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 00:38:18,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:18,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:18,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:18,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:18,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:18,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:38:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:18,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:18,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:18,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:18,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:18,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:18,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:18,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:18,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:18,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:18,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:18,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:38:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:18,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:18,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:18,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:18,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:18,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:18,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:18,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:18,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:18,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:18,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:18,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:38:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:18,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:18,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:18,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:18,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:18,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:38:18,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:18,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:18,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:18,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:18,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:18,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:38:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:18,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:18,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:18,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:18,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:18,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:38:18,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:18,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:18,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:18,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:18,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:18,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 00:38:18,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:18,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:18,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:19,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:19,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 00:38:19,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:38:19,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 924 [2020-09-25 00:38:19,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:19,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:38:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:38:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:38:19,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:19,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:19,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:19,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:19,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 00:38:19,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:19,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 00:38:19,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:19,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:38:19,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:38:19,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:38:19,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:19,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:19,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:19,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:19,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:38:19,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:19,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 00:38:19,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:19,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:19,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:19,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:38:19,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:19,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:38:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:19,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:19,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:19,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:38:19,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:19,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:38:19,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:19,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:19,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:19,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:19,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:19,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:38:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:19,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:19,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:19,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 00:38:19,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:19,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 00:38:19,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:19,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:19,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 00:38:19,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:19,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:19,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:38:19,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:19,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:19,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:19,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:38:19,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:19,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:19,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:19,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:19,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:19,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:19,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:19,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:38:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:19,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:19,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:19,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:19,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:19,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:19,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:19,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:19,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:19,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:19,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:19,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 00:38:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:19,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:19,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:19,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:38:19,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:19,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:19,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:19,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:19,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:19,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:19,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:19,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 00:38:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:19,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:19,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:19,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:19,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:19,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:38:19,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:19,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:19,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:19,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:38:19,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:19,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-25 00:38:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:19,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:19,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:19,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:19,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:19,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:19,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:19,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:19,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:38:19,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:19,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:19,427 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 00:38:19,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811296073] [2020-09-25 00:38:19,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:38:19,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 00:38:19,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831201658] [2020-09-25 00:38:19,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 00:38:19,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:38:19,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 00:38:19,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:38:19,432 INFO L87 Difference]: Start difference. First operand 373 states and 427 transitions. Second operand 14 states. [2020-09-25 00:38:19,972 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:38:21,020 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:21,400 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:38:21,796 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:22,184 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:38:22,520 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:23,238 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:23,586 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:38:23,894 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:38:24,219 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:38:24,536 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:24,885 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:25,291 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:38:25,626 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:25,979 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:26,644 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:26,963 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:38:27,301 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:38:27,661 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:28,018 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:38:28,326 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:30,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:38:30,532 INFO L93 Difference]: Finished difference Result 1033 states and 1374 transitions. [2020-09-25 00:38:30,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 00:38:30,536 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 203 [2020-09-25 00:38:30,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:38:30,544 INFO L225 Difference]: With dead ends: 1033 [2020-09-25 00:38:30,544 INFO L226 Difference]: Without dead ends: 724 [2020-09-25 00:38:30,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=210, Invalid=1050, Unknown=0, NotChecked=0, Total=1260 [2020-09-25 00:38:30,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2020-09-25 00:38:30,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 605. [2020-09-25 00:38:30,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 605 states. [2020-09-25 00:38:30,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 697 transitions. [2020-09-25 00:38:30,656 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 697 transitions. Word has length 203 [2020-09-25 00:38:30,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:38:30,656 INFO L479 AbstractCegarLoop]: Abstraction has 605 states and 697 transitions. [2020-09-25 00:38:30,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 00:38:30,657 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 697 transitions. [2020-09-25 00:38:30,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-09-25 00:38:30,661 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:38:30,661 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:38:30,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:38:30,662 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:38:30,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:38:30,662 INFO L82 PathProgramCache]: Analyzing trace with hash 41015769, now seen corresponding path program 1 times [2020-09-25 00:38:30,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:38:30,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1699706730] [2020-09-25 00:38:30,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:38:30,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:30,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:30,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:31,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:31,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:31,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:32,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:35,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:35,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 303 [2020-09-25 00:38:35,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:38:35,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 00:38:35,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:35,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:35,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 215 [2020-09-25 00:38:35,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:38:35,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:36,014 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:38:36,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:38:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:38:36,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 00:38:36,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:36,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:36,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:36,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:36,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:38:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:36,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:38:36,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:36,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:36,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:36,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:36,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:38:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:36,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:38:36,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:36,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:36,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:36,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:36,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:38:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:36,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:36,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:36,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:36,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:36,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:36,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:38:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:36,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:38:36,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:36,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:36,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:36,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:36,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:38:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:38:36,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:38:36,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:36,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:36,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:36,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:36,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 00:38:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:38:36,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:36,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:36,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:36,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:36,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:36,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 00:38:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 00:38:36,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:36,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:36,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:36,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:36,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:36,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 00:38:36,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:36,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:36,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:36,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:36,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:36,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:36,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:36,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:36,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:36,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:36,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:36,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 00:38:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 00:38:36,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 00:38:36,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:36,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:38:36,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:38:36,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:36,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 00:38:36,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 00:38:36,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:36,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:38:36,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:38:36,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:36,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:38:36,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 00:38:36,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:36,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:38:36,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:38:36,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:36,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:38:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:38:36,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:38:36,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:38:36,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:36,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:38:36,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:36,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:38:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 00:38:36,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 00:38:36,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:36,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 00:38:36,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:36,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:36,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:38:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:38:36,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:36,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:36,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:36,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:36,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:36,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:38:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:36,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:36,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:36,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:36,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:36,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:36,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 00:38:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:38:36,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:36,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:36,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:36,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:36,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:36,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-09-25 00:38:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:36,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:36,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:36,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:38:36,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:36,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:36,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-25 00:38:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:36,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:36,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:36,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:36,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:36,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:36,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:36,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:38:36,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:36,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:36,801 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 00:38:36,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1699706730] [2020-09-25 00:38:36,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:38:36,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 00:38:36,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388882967] [2020-09-25 00:38:36,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 00:38:36,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:38:36,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 00:38:36,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:38:36,806 INFO L87 Difference]: Start difference. First operand 605 states and 697 transitions. Second operand 11 states. [2020-09-25 00:38:38,235 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:38,533 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:38:38,870 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:39,210 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:38:39,512 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:41,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:38:41,502 INFO L93 Difference]: Finished difference Result 1612 states and 2146 transitions. [2020-09-25 00:38:41,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 00:38:41,502 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 246 [2020-09-25 00:38:41,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:38:41,512 INFO L225 Difference]: With dead ends: 1612 [2020-09-25 00:38:41,512 INFO L226 Difference]: Without dead ends: 1117 [2020-09-25 00:38:41,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2020-09-25 00:38:41,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2020-09-25 00:38:41,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 617. [2020-09-25 00:38:41,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 617 states. [2020-09-25 00:38:41,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 709 transitions. [2020-09-25 00:38:41,620 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 709 transitions. Word has length 246 [2020-09-25 00:38:41,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:38:41,621 INFO L479 AbstractCegarLoop]: Abstraction has 617 states and 709 transitions. [2020-09-25 00:38:41,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 00:38:41,621 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 709 transitions. [2020-09-25 00:38:41,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-09-25 00:38:41,626 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:38:41,626 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:38:41,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:38:41,627 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:38:41,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:38:41,627 INFO L82 PathProgramCache]: Analyzing trace with hash -2013739204, now seen corresponding path program 1 times [2020-09-25 00:38:41,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:38:41,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359446773] [2020-09-25 00:38:41,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:38:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:41,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:41,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:41,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking...