/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:19:52,451 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:19:52,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:19:52,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:19:52,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:19:52,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:19:52,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:19:52,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:19:52,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:19:52,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:19:52,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:19:52,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:19:52,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:19:52,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:19:52,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:19:52,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:19:52,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:19:52,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:19:52,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:19:52,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:19:52,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:19:52,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:19:52,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:19:52,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:19:52,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:19:52,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:19:52,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:19:52,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:19:52,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:19:52,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:19:52,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:19:52,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:19:52,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:19:52,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:19:52,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:19:52,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:19:52,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:19:52,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:19:52,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:19:52,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:19:52,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:19:52,566 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:19:52,619 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:19:52,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:19:52,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:19:52,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:19:52,623 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:19:52,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:19:52,623 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:19:52,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:19:52,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:19:52,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:19:52,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:19:52,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:19:52,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:19:52,626 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:19:52,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:19:52,626 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:19:52,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:19:52,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:19:52,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:19:52,627 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:19:52,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:19:52,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:19:52,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:19:52,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:19:52,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:19:52,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:19:52,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:19:52,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:19:52,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:19:52,629 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:19:53,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:19:53,108 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:19:53,114 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:19:53,118 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:19:53,119 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:19:53,120 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product46.cil.c [2020-09-24 21:19:53,213 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2e8a8183/009cb46c17ac4dbe98ad687cd427f46b/FLAG6b33afa94 [2020-09-24 21:19:53,855 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:19:53,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product46.cil.c [2020-09-24 21:19:53,879 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2e8a8183/009cb46c17ac4dbe98ad687cd427f46b/FLAG6b33afa94 [2020-09-24 21:19:54,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2e8a8183/009cb46c17ac4dbe98ad687cd427f46b [2020-09-24 21:19:54,160 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:19:54,165 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:19:54,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:19:54,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:19:54,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:19:54,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:19:54" (1/1) ... [2020-09-24 21:19:54,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b8ae67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:54, skipping insertion in model container [2020-09-24 21:19:54,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:19:54" (1/1) ... [2020-09-24 21:19:54,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:19:54,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:19:54,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:19:54,637 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:19:54,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:19:54,882 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:19:54,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:54 WrapperNode [2020-09-24 21:19:54,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:19:54,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:19:54,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:19:54,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:19:54,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:54" (1/1) ... [2020-09-24 21:19:54,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:54" (1/1) ... [2020-09-24 21:19:54,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:54" (1/1) ... [2020-09-24 21:19:54,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:54" (1/1) ... [2020-09-24 21:19:54,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:54" (1/1) ... [2020-09-24 21:19:54,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:54" (1/1) ... [2020-09-24 21:19:55,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:54" (1/1) ... [2020-09-24 21:19:55,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:19:55,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:19:55,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:19:55,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:19:55,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:19:55,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:19:55,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:19:55,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:19:55,143 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:19:55,144 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:19:55,144 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:19:55,144 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:19:55,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:19:55,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:19:55,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:19:55,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:19:55,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:19:55,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:19:55,146 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:19:55,146 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:19:55,147 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:19:55,148 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:19:55,148 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:19:55,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:19:55,148 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:19:55,149 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:19:55,149 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:19:55,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:19:55,149 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:19:55,150 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:19:55,150 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:19:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:19:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 21:19:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:19:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 21:19:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:19:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:19:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:19:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:19:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:19:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:19:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 21:19:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:19:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:19:55,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:19:55,154 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:19:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:19:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:19:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:19:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:19:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:19:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:19:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:19:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:19:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:19:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:19:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:19:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:19:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:19:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:19:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:19:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:19:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:19:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:19:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:19:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:19:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:19:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:19:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:19:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:19:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:19:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:19:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:19:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:19:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:19:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:19:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:19:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:19:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:19:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:19:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:19:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:19:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:19:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:19:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:19:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:19:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:19:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:19:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:19:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 21:19:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:19:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:19:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:19:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:19:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 21:19:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:19:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 21:19:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:19:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:19:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:19:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:19:56,326 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:19:56,327 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:19:56,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:19:56 BoogieIcfgContainer [2020-09-24 21:19:56,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:19:56,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:19:56,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:19:56,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:19:56,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:19:54" (1/3) ... [2020-09-24 21:19:56,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec2958e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:19:56, skipping insertion in model container [2020-09-24 21:19:56,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:54" (2/3) ... [2020-09-24 21:19:56,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec2958e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:19:56, skipping insertion in model container [2020-09-24 21:19:56,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:19:56" (3/3) ... [2020-09-24 21:19:56,345 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product46.cil.c [2020-09-24 21:19:56,357 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:19:56,369 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:19:56,394 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:19:56,431 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:19:56,431 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:19:56,431 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:19:56,432 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:19:56,432 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:19:56,432 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:19:56,432 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:19:56,432 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:19:56,464 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states. [2020-09-24 21:19:56,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 21:19:56,485 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:19:56,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:19:56,489 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:19:56,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:19:56,500 INFO L82 PathProgramCache]: Analyzing trace with hash -416095138, now seen corresponding path program 1 times [2020-09-24 21:19:56,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:19:56,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485875454] [2020-09-24 21:19:56,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:19:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:57,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:57,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:58,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:59,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:00,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:01,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:01,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:01,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 21:20:01,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:20:01,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-24 21:20:02,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:02,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:20:02,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:20:02,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-24 21:20:02,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-24 21:20:02,490 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:20:02,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:20:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:02,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:02,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:02,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:20:02,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:02,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-09-24 21:20:02,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:02,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:02,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:02,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:20:02,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:03,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:20:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:03,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:03,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:03,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:03,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:03,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:03,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:03,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:03,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:03,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:03,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:03,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:20:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:03,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:03,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:03,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:03,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:03,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:03,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:03,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:03,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:03,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:03,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:03,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:20:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:03,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:03,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:03,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:03,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:03,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:20:03,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:03,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:03,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:03,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:03,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:03,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:20:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:03,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:03,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:03,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:03,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:03,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:03,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:03,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:03,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:20:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:03,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:03,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:03,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:03,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:03,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:03,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:03,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:03,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:03,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:20:03,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:03,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:20:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:03,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:03,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:03,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:03,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:03,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:20:03,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:03,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:20:03,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:03,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:03,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:03,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 21:20:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:03,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:03,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:03,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:03,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:03,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:03,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:03,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:03,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:20:03,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:03,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:03,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:20:03,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1485875454] [2020-09-24 21:20:03,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:20:03,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:20:03,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897174865] [2020-09-24 21:20:03,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:20:03,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:20:03,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:20:03,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:20:03,183 INFO L87 Difference]: Start difference. First operand 323 states. Second operand 9 states. [2020-09-24 21:20:03,793 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:20:05,014 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:05,449 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:20:05,860 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:06,327 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:20:06,682 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:07,433 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:20:07,790 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:08,296 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:20:09,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:20:09,842 INFO L93 Difference]: Finished difference Result 686 states and 830 transitions. [2020-09-24 21:20:09,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 21:20:09,844 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 21:20:09,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:20:09,867 INFO L225 Difference]: With dead ends: 686 [2020-09-24 21:20:09,868 INFO L226 Difference]: Without dead ends: 476 [2020-09-24 21:20:09,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 21:20:09,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-09-24 21:20:10,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 401. [2020-09-24 21:20:10,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-09-24 21:20:10,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 446 transitions. [2020-09-24 21:20:10,021 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 446 transitions. Word has length 148 [2020-09-24 21:20:10,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:20:10,022 INFO L479 AbstractCegarLoop]: Abstraction has 401 states and 446 transitions. [2020-09-24 21:20:10,022 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:20:10,022 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 446 transitions. [2020-09-24 21:20:10,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 21:20:10,029 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:20:10,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:20:10,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:20:10,030 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:20:10,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:20:10,030 INFO L82 PathProgramCache]: Analyzing trace with hash 798641751, now seen corresponding path program 1 times [2020-09-24 21:20:10,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:20:10,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050588624] [2020-09-24 21:20:10,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:20:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:10,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:10,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:10,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:12,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:15,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:15,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-24 21:20:15,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:20:15,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-24 21:20:15,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:15,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 21:20:15,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:20:15,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-24 21:20:15,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:15,483 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:20:15,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:20:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:15,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:15,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:15,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:20:15,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:15,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-09-24 21:20:15,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:15,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:15,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:15,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:20:15,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:15,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:20:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:15,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:15,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:15,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:15,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:15,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:15,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:15,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:15,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:15,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:15,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:15,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:20:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:15,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:15,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:15,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:15,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:15,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:15,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:15,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:15,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:15,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:15,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:15,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:20:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:15,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:15,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:15,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:15,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:15,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:20:15,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:15,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:15,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:15,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:15,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:15,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:20:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:15,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:15,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:15,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:15,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:15,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:15,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:15,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:15,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:15,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:15,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:15,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:20:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:15,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:15,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:15,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:15,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:15,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:20:15,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:15,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:15,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:15,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:20:15,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:15,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:20:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:15,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:15,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:15,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:20:15,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:15,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:20:15,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:15,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:15,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:15,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:20:15,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:15,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 21:20:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:15,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:15,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:15,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:15,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:15,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:20:15,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:20:15,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:15,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 21:20:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:15,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:15,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:15,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:15,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:15,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:15,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:15,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:15,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:15,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:15,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:15,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 21:20:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:15,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:15,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:15,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:15,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:15,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:20:15,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:15,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:20:15,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:15,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:15,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:16,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:20:16,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2050588624] [2020-09-24 21:20:16,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:20:16,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 21:20:16,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796725470] [2020-09-24 21:20:16,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:20:16,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:20:16,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:20:16,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:20:16,112 INFO L87 Difference]: Start difference. First operand 401 states and 446 transitions. Second operand 11 states. [2020-09-24 21:20:16,695 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:20:18,406 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-24 21:20:19,001 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 21:20:19,399 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:19,734 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:20:20,095 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:21,457 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 21:20:21,935 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:20:22,376 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:20:23,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:20:23,433 INFO L93 Difference]: Finished difference Result 1137 states and 1446 transitions. [2020-09-24 21:20:23,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-24 21:20:23,433 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 167 [2020-09-24 21:20:23,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:20:23,445 INFO L225 Difference]: With dead ends: 1137 [2020-09-24 21:20:23,445 INFO L226 Difference]: Without dead ends: 851 [2020-09-24 21:20:23,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=342, Invalid=990, Unknown=0, NotChecked=0, Total=1332 [2020-09-24 21:20:23,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2020-09-24 21:20:23,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 598. [2020-09-24 21:20:23,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2020-09-24 21:20:23,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 681 transitions. [2020-09-24 21:20:23,570 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 681 transitions. Word has length 167 [2020-09-24 21:20:23,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:20:23,571 INFO L479 AbstractCegarLoop]: Abstraction has 598 states and 681 transitions. [2020-09-24 21:20:23,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:20:23,571 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 681 transitions. [2020-09-24 21:20:23,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-09-24 21:20:23,577 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:20:23,578 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:20:23,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:20:23,578 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:20:23,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:20:23,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1667686932, now seen corresponding path program 1 times [2020-09-24 21:20:23,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:20:23,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6419420] [2020-09-24 21:20:23,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:20:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:23,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:23,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:23,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:24,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:24,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:24,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:25,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:27,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:28,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:28,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 343 [2020-09-24 21:20:28,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 21:20:28,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-24 21:20:28,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:28,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:28,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 21:20:28,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 21:20:28,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:28,934 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:20:28,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:20:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:28,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:20:29,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 21:20:29,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:29,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:29,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:29,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:29,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:20:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:29,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:20:29,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:29,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:29,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:29,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:29,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:20:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:29,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:29,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:29,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:29,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:29,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:29,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:20:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:29,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:20:29,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:29,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:29,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:29,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:29,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:20:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:29,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:29,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:29,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:29,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:29,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:29,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:20:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:29,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:29,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:29,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:29,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:29,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:29,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:20:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:20:29,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:20:29,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:29,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:29,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:20:29,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:29,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 21:20:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:29,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:20:29,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:29,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:29,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:20:29,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:29,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 21:20:29,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 21:20:29,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 21:20:29,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:29,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:29,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 21:20:29,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:29,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 21:20:29,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:20:29,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:29,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:29,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:29,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:29,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:29,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:20:29,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:29,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:29,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:29,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:20:29,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 21:20:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 21:20:29,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 21:20:29,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:29,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-24 21:20:29,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:29,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:20:29,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 21:20:29,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:20:29,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:29,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:29,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:29,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:20:29,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:29,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:29,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:29,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:29,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:29,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:29,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 21:20:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 21:20:29,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:20:29,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 21:20:29,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:20:29,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 21:20:29,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:20:29,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:29,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:20:29,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 21:20:29,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:20:29,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 21:20:29,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:20:29,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:29,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:20:29,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 21:20:29,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:20:29,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:29,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:20:29,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:29,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:20:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:20:29,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:20:29,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:29,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:29,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:29,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:29,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:20:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:20:29,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 21:20:29,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:29,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 21:20:29,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:29,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-24 21:20:29,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:20:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:20:29,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:29,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:29,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:29,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:29,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:29,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:20:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:29,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:20:29,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:29,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:29,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:29,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:29,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:20:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:29,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:29,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:29,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:29,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-09-24 21:20:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:29,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:29,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:29,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:20:29,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:29,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:29,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2020-09-24 21:20:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:29,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:29,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:29,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:29,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:29,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:29,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:29,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:20:29,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:29,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:29,938 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-09-24 21:20:29,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [6419420] [2020-09-24 21:20:29,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:20:29,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 21:20:29,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511538786] [2020-09-24 21:20:29,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 21:20:29,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:20:29,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 21:20:29,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-24 21:20:29,943 INFO L87 Difference]: Start difference. First operand 598 states and 681 transitions. Second operand 14 states. [2020-09-24 21:20:30,897 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:20:32,345 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:32,763 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:20:33,115 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 21:20:33,496 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:20:33,847 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:20:34,161 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:20:35,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:20:35,869 INFO L93 Difference]: Finished difference Result 1476 states and 1929 transitions. [2020-09-24 21:20:35,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-24 21:20:35,870 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 278 [2020-09-24 21:20:35,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:20:35,879 INFO L225 Difference]: With dead ends: 1476 [2020-09-24 21:20:35,879 INFO L226 Difference]: Without dead ends: 993 [2020-09-24 21:20:35,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=394, Invalid=1498, Unknown=0, NotChecked=0, Total=1892 [2020-09-24 21:20:35,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2020-09-24 21:20:36,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 590. [2020-09-24 21:20:36,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2020-09-24 21:20:36,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 659 transitions. [2020-09-24 21:20:36,014 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 659 transitions. Word has length 278 [2020-09-24 21:20:36,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:20:36,015 INFO L479 AbstractCegarLoop]: Abstraction has 590 states and 659 transitions. [2020-09-24 21:20:36,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 21:20:36,016 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 659 transitions. [2020-09-24 21:20:36,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-09-24 21:20:36,019 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:20:36,020 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:20:36,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:20:36,020 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:20:36,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:20:36,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1330389098, now seen corresponding path program 1 times [2020-09-24 21:20:36,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:20:36,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [892086075] [2020-09-24 21:20:36,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:20:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:36,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:36,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:39,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:40,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 278 [2020-09-24 21:20:41,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:20:41,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 21:20:41,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:20:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 21:20:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-09-24 21:20:41,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:41,427 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:20:41,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:20:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:20:41,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:41,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 21:20:41,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:41,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:41,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:41,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:41,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:20:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:41,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:41,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:20:41,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:41,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:41,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:41,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:41,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:20:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:41,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:41,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:20:41,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:41,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:41,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:41,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:41,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:20:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:41,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:41,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:41,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:41,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:41,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:41,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:41,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:20:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:41,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:41,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:20:41,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:41,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:41,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:41,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:41,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:20:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:41,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:41,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:41,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:41,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:41,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 21:20:41,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:41,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:20:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:20:41,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:41,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:20:41,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:20:41,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:41,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 21:20:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:41,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:41,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:41,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:41,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:41,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:20:41,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:41,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 21:20:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 21:20:41,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:20:41,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-24 21:20:41,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:41,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:41,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:20:41,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:41,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:41,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:20:41,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:20:41,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-24 21:20:41,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:41,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:41,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:41,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:41,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:41,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:41,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:41,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:42,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:42,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:20:42,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:20:42,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 21:20:42,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:42,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:42,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:42,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:42,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:42,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:20:42,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:42,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:42,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:42,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:20:42,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:42,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:42,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:42,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:42,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:42,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:42,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:42,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:20:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:42,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:42,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:42,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:20:42,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:42,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:20:42,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:42,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:42,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:20:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:42,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:42,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:42,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:20:42,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:42,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:42,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:42,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:42,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:42,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:20:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:42,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:42,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:42,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:42,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:42,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:20:42,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:42,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:42,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:42,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:42,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:42,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:20:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:42,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:42,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:42,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:42,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:42,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:42,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:42,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:42,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:42,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:42,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:42,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 21:20:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:42,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:42,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:42,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:42,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:42,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:20:42,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:42,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:42,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:42,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:42,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:42,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-24 21:20:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:42,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:42,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:42,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:42,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:42,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:42,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:42,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:42,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:42,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:42,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:42,245 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:20:42,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [892086075] [2020-09-24 21:20:42,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:20:42,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:20:42,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108433566] [2020-09-24 21:20:42,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:20:42,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:20:42,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:20:42,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:20:42,249 INFO L87 Difference]: Start difference. First operand 590 states and 659 transitions. Second operand 8 states. [2020-09-24 21:20:42,996 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 189