/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 SequenceOfStatements --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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:01:55,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:01:55,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:01:55,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:01:55,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:01:55,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:01:55,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:01:55,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:01:55,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:01:55,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:01:55,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:01:55,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:01:55,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:01:55,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:01:55,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:01:55,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:01:55,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:01:55,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:01:55,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:01:55,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:01:55,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:01:55,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:01:55,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:01:55,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:01:55,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:01:55,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:01:55,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:01:55,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:01:55,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:01:55,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:01:55,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:01:55,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:01:55,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:01:55,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:01:55,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:01:55,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:01:55,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:01:55,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:01:55,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:01:55,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:01:55,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:01:55,450 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 [2020-10-12 18:01:55,491 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:01:55,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:01:55,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:01:55,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:01:55,495 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:01:55,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:01:55,495 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:01:55,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:01:55,496 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:01:55,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:01:55,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:01:55,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:01:55,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:01:55,498 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:01:55,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:01:55,498 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:01:55,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:01:55,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:01:55,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:01:55,499 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:01:55,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:01:55,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:01:55,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:01:55,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:01:55,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:01:55,501 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:01:55,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:01:55,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:01:55,501 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:01:55,501 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 -> SequenceOfStatements 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:01:55,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:01:55,826 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:01:55,829 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:01:55,831 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:01:55,832 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:01:55,833 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c [2020-10-12 18:01:55,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/152a1c76e/cd2c6c12bf9b4b92b8cdddc29a0a8866/FLAG98e29b330 [2020-10-12 18:01:56,417 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:01:56,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c [2020-10-12 18:01:56,439 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/152a1c76e/cd2c6c12bf9b4b92b8cdddc29a0a8866/FLAG98e29b330 [2020-10-12 18:01:56,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/152a1c76e/cd2c6c12bf9b4b92b8cdddc29a0a8866 [2020-10-12 18:01:56,751 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:01:56,753 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:01:56,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:01:56,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:01:56,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:01:56,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:01:56" (1/1) ... [2020-10-12 18:01:56,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4207e6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:56, skipping insertion in model container [2020-10-12 18:01:56,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:01:56" (1/1) ... [2020-10-12 18:01:56,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:01:56,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:01:57,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:01:57,297 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:01:57,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:01:57,411 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:01:57,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:57 WrapperNode [2020-10-12 18:01:57,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:01:57,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:01:57,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:01:57,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:01:57,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:57" (1/1) ... [2020-10-12 18:01:57,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:57" (1/1) ... [2020-10-12 18:01:57,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:57" (1/1) ... [2020-10-12 18:01:57,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:57" (1/1) ... [2020-10-12 18:01:57,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:57" (1/1) ... [2020-10-12 18:01:57,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:57" (1/1) ... [2020-10-12 18:01:57,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:57" (1/1) ... [2020-10-12 18:01:57,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:01:57,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:01:57,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:01:57,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:01:57,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:01:57,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:01:57,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:01:57,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-12 18:01:57,564 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-12 18:01:57,564 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-12 18:01:57,565 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-12 18:01:57,565 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-12 18:01:57,565 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:01:57,565 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-12 18:01:57,565 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-12 18:01:57,565 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-12 18:01:57,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-12 18:01:57,566 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-12 18:01:57,566 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-12 18:01:57,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-12 18:01:57,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-12 18:01:57,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-12 18:01:57,567 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-12 18:01:57,567 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-12 18:01:57,567 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-12 18:01:57,567 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-12 18:01:57,567 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-12 18:01:57,567 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-12 18:01:57,567 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-12 18:01:57,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-12 18:01:57,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-12 18:01:57,568 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-12 18:01:57,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-12 18:01:57,568 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-12 18:01:57,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-12 18:01:57,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-12 18:01:57,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-12 18:01:57,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-12 18:01:57,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-12 18:01:57,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-12 18:01:57,569 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-12 18:01:57,569 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-12 18:01:57,570 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-12 18:01:57,570 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-12 18:01:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:01:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 18:01:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-12 18:01:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-12 18:01:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-12 18:01:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-12 18:01:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-12 18:01:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-12 18:01:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-12 18:01:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-12 18:01:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-12 18:01:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-12 18:01:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-12 18:01:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-12 18:01:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-12 18:01:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:01:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-12 18:01:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-12 18:01:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-12 18:01:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-12 18:01:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-12 18:01:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 18:01:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-12 18:01:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-12 18:01:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-12 18:01:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-12 18:01:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-12 18:01:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-12 18:01:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-12 18:01:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-12 18:01:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-12 18:01:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-12 18:01:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-12 18:01:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-12 18:01:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 18:01:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 18:01:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-12 18:01:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 18:01:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 18:01:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 18:01:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 18:01:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-12 18:01:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 18:01:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-12 18:01:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-12 18:01:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 18:01:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-12 18:01:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-12 18:01:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-12 18:01:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-12 18:01:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:01:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 18:01:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:01:58,586 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:01:58,587 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-12 18:01:58,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:01:58 BoogieIcfgContainer [2020-10-12 18:01:58,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:01:58,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:01:58,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:01:58,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:01:58,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:01:56" (1/3) ... [2020-10-12 18:01:58,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef51cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:01:58, skipping insertion in model container [2020-10-12 18:01:58,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:57" (2/3) ... [2020-10-12 18:01:58,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef51cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:01:58, skipping insertion in model container [2020-10-12 18:01:58,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:01:58" (3/3) ... [2020-10-12 18:01:58,601 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product38.cil.c [2020-10-12 18:01:58,612 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:01:58,620 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:01:58,634 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:01:58,660 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:01:58,660 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:01:58,660 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:01:58,660 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:01:58,661 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:01:58,661 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:01:58,661 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:01:58,661 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:01:58,683 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states. [2020-10-12 18:01:58,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 18:01:58,694 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:01:58,695 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] [2020-10-12 18:01:58,696 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:01:58,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:01:58,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1463974042, now seen corresponding path program 1 times [2020-10-12 18:01:58,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:01:58,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010255560] [2020-10-12 18:01:58,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:01:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:01:59,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:01:59,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:00,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:00,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:01,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:02,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:02,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 18:02:02,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:02:02,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3902 [2020-10-12 18:02:02,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:02,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 18:02:02,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:02,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 18:02:02,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:02:03,314 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:02:03,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:02:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:03,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:03,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:03,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:03,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:03,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-12 18:02:03,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:02:03,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:03,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:02:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:03,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:03,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:03,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:03,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:03,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:03,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:03,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:03,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:03,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:03,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:03,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:02:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:03,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:03,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:03,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:03,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:03,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:03,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:03,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:03,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:03,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:03,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:03,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 18:02:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:03,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:03,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:03,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:03,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:03,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:03,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:03,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:03,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:03,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:03,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:03,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 18:02:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:03,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:03,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:03,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:03,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:03,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:03,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:03,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:03,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:03,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:03,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:02:03,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 18:02:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:03,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:03,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:03,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:03,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:03,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:03,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:03,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:03,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:03,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:03,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:03,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 18:02:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:03,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:03,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:03,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:03,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:03,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:02:03,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:03,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:03,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:03,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:03,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:03,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:02:03,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010255560] [2020-10-12 18:02:03,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:02:03,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 18:02:03,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127311989] [2020-10-12 18:02:03,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 18:02:03,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:02:03,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 18:02:03,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-12 18:02:03,526 INFO L87 Difference]: Start difference. First operand 173 states. Second operand 7 states. [2020-10-12 18:02:04,026 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:02:04,979 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:02:05,273 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:02:05,561 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:02:06,140 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:02:06,419 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:02:07,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:02:07,504 INFO L93 Difference]: Finished difference Result 394 states and 539 transitions. [2020-10-12 18:02:07,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 18:02:07,507 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2020-10-12 18:02:07,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:02:07,523 INFO L225 Difference]: With dead ends: 394 [2020-10-12 18:02:07,523 INFO L226 Difference]: Without dead ends: 242 [2020-10-12 18:02:07,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:02:07,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-12 18:02:07,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 208. [2020-10-12 18:02:07,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-10-12 18:02:07,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 259 transitions. [2020-10-12 18:02:07,655 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 259 transitions. Word has length 46 [2020-10-12 18:02:07,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:02:07,656 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 259 transitions. [2020-10-12 18:02:07,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 18:02:07,656 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 259 transitions. [2020-10-12 18:02:07,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-12 18:02:07,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:02:07,661 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] [2020-10-12 18:02:07,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:02:07,661 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:02:07,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:02:07,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1160094294, now seen corresponding path program 1 times [2020-10-12 18:02:07,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:02:07,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778428303] [2020-10-12 18:02:07,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:02:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:07,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:07,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:07,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:12,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:12,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-12 18:02:12,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:02:12,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-12 18:02:12,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:12,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 18:02:12,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:12,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 18:02:12,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:13,062 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:02:13,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:02:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:13,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 18:02:13,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:13,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:13,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:02:13,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:02:13,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:02:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:13,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:13,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:13,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:13,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:13,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:13,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:02:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:13,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:13,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:13,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:13,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:13,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:13,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 18:02:13,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:13,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:13,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:13,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:13,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:13,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:13,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 18:02:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:13,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:13,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:13,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:13,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:13,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:13,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 18:02:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 18:02:13,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:02:13,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 18:02:13,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:02:13,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 18:02:13,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:02:13,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:13,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:13,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:02:13,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:02:13,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:02:13,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:02:13,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:02:13,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:13,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:02:13,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:02:13,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:13,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:13,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:02:13,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:02:13,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:02:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:02:13,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:13,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:13,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:13,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:13,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:02:13,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 18:02:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:13,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:02:13,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:13,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:13,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:13,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:13,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:02:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:13,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:02:13,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:13,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:13,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:13,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:13,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:02:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:13,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:13,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:13,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:13,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:13,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:13,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:02:13,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778428303] [2020-10-12 18:02:13,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:02:13,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 18:02:13,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135115140] [2020-10-12 18:02:13,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:02:13,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:02:13,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:02:13,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:02:13,460 INFO L87 Difference]: Start difference. First operand 208 states and 259 transitions. Second operand 12 states. [2020-10-12 18:02:13,902 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:02:14,703 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:02:15,076 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:02:15,348 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:02:15,740 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:02:16,048 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 18:02:16,322 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 18:02:16,644 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 18:02:16,958 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:02:17,356 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:02:17,631 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 18:02:17,935 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:02:18,233 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:02:19,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:02:19,441 INFO L93 Difference]: Finished difference Result 605 states and 864 transitions. [2020-10-12 18:02:19,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 18:02:19,441 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 75 [2020-10-12 18:02:19,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:02:19,455 INFO L225 Difference]: With dead ends: 605 [2020-10-12 18:02:19,455 INFO L226 Difference]: Without dead ends: 421 [2020-10-12 18:02:19,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=123, Invalid=527, Unknown=0, NotChecked=0, Total=650 [2020-10-12 18:02:19,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-10-12 18:02:19,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 347. [2020-10-12 18:02:19,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-10-12 18:02:19,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 439 transitions. [2020-10-12 18:02:19,552 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 439 transitions. Word has length 75 [2020-10-12 18:02:19,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:02:19,552 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 439 transitions. [2020-10-12 18:02:19,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:02:19,552 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 439 transitions. [2020-10-12 18:02:19,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-12 18:02:19,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:02:19,557 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:02:19,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:02:19,557 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:02:19,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:02:19,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1406858176, now seen corresponding path program 1 times [2020-10-12 18:02:19,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:02:19,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [214723734] [2020-10-12 18:02:19,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:02:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:19,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:19,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:19,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:19,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:19,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:20,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:24,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:24,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-12 18:02:24,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:02:24,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:02:24,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:24,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 18:02:24,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:24,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 18:02:24,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:24,939 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:02:24,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:02:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:24,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:25,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:25,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:25,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:25,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 18:02:25,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:25,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:25,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:25,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:02:25,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:25,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:02:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:25,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:25,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:25,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:25,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:25,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:25,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:25,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:25,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:25,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:25,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:25,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:02:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:25,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:25,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:25,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:25,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:25,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:25,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:25,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:25,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:25,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:25,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:25,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 18:02:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:25,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:25,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:25,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:25,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:25,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:25,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:25,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:25,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:25,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:25,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:25,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 18:02:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:25,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:25,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:25,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:25,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:25,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:25,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:25,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:25,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:25,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:25,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:25,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:02:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:25,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:25,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:25,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:25,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:25,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:02:25,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:25,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:02:25,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:02:25,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:02:25,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:25,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:02:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:25,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:25,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:25,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 18:02:25,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:25,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:02:25,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:25,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:25,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:02:25,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:02:25,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:25,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:25,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:25,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:25,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:02:25,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:25,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:02:25,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:25,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:25,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:25,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:02:25,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:02:25,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:02:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:25,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:25,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:25,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:25,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:25,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:25,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:25,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:25,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:25,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:25,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:25,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:02:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:25,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:25,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:25,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:25,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 18:02:25,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:02:25,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 18:02:25,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:25,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:25,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 18:02:25,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:25,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:25,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:25,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:25,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:25,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:02:25,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:25,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:02:25,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:25,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:25,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 18:02:25,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:25,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:25,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:25,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:25,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:25,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:02:25,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:25,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:02:25,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:25,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:25,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:02:25,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:25,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:25,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:02:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:25,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:25,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:25,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:02:25,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:25,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:02:25,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:25,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:02:25,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:25,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:25,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:25,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 18:02:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:25,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:25,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:25,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:25,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:25,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:25,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:25,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:25,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:25,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:25,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:25,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:02:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:25,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:25,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:25,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:25,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:25,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:25,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:25,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:25,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:25,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:25,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:25,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 18:02:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:25,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:25,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:25,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:25,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:25,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:25,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:25,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:25,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:25,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:25,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:25,440 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 18:02:25,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [214723734] [2020-10-12 18:02:25,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:02:25,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-12 18:02:25,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080343209] [2020-10-12 18:02:25,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:02:25,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:02:25,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:02:25,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:02:25,443 INFO L87 Difference]: Start difference. First operand 347 states and 439 transitions. Second operand 14 states. [2020-10-12 18:02:25,875 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:02:26,554 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:02:27,083 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:02:27,390 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:02:27,677 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:02:29,309 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:02:29,760 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 186 [2020-10-12 18:02:30,088 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:02:30,336 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:02:30,946 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 187 [2020-10-12 18:02:31,948 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-10-12 18:02:32,494 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-10-12 18:02:32,968 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-10-12 18:02:35,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:02:35,468 INFO L93 Difference]: Finished difference Result 1331 states and 1984 transitions. [2020-10-12 18:02:35,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-12 18:02:35,469 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 103 [2020-10-12 18:02:35,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:02:35,482 INFO L225 Difference]: With dead ends: 1331 [2020-10-12 18:02:35,482 INFO L226 Difference]: Without dead ends: 977 [2020-10-12 18:02:35,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=323, Invalid=1399, Unknown=0, NotChecked=0, Total=1722 [2020-10-12 18:02:35,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2020-10-12 18:02:35,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 833. [2020-10-12 18:02:35,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 833 states. [2020-10-12 18:02:35,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1066 transitions. [2020-10-12 18:02:35,677 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1066 transitions. Word has length 103 [2020-10-12 18:02:35,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:02:35,678 INFO L479 AbstractCegarLoop]: Abstraction has 833 states and 1066 transitions. [2020-10-12 18:02:35,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:02:35,678 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1066 transitions. [2020-10-12 18:02:35,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-12 18:02:35,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:02:35,682 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:02:35,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:02:35,682 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:02:35,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:02:35,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1862617121, now seen corresponding path program 1 times [2020-10-12 18:02:35,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:02:35,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662201603] [2020-10-12 18:02:35,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:02:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:35,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:35,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:35,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:35,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:36,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:36,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:36,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:40,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:40,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-12 18:02:40,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:02:40,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 18:02:40,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:40,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 18:02:40,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:40,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-12 18:02:40,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:41,024 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:02:41,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:02:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:41,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:41,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:41,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:41,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:41,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 18:02:41,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:41,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:41,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:41,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:02:41,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:41,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:02:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:41,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:41,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:41,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:41,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:41,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:02:41,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:41,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:41,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:41,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:41,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:41,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:02:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:41,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:41,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:41,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:41,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:41,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:41,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:41,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:41,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:41,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:41,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:41,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 18:02:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:41,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:41,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:41,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:41,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:41,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:41,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:41,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:41,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:41,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:41,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:41,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 18:02:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:41,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:41,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:41,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:41,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:41,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:41,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:41,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:41,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:41,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:41,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:41,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:02:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:41,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:41,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:41,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:41,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:41,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:02:41,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:41,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:02:41,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:02:41,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:02:41,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:41,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:02:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:41,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:41,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:41,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:41,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 18:02:41,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:02:41,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:02:41,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:41,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:02:41,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:41,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:02:41,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:41,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:41,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:41,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:41,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:02:41,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:41,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:02:41,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:41,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:02:41,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:41,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:02:41,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:41,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:02:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:41,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:41,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:41,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:41,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:41,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:41,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:41,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:02:41,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:41,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:41,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:41,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:02:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:41,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:41,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:41,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:41,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 18:02:41,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:02:41,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:02:41,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:41,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:41,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:41,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 18:02:41,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:41,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:41,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:41,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:41,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:02:41,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:41,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:02:41,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:41,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:41,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:41,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:41,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:41,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:41,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:41,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:41,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:02:41,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:41,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:41,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:41,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:41,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:41,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:41,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:41,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:02:41,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:41,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:41,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:41,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:02:41,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:41,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:41,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:41,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:41,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:41,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:41,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 18:02:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:41,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:41,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:41,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:41,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:41,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:02:41,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:41,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:41,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:41,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:41,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:41,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:02:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:41,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:41,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:41,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:41,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:41,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:41,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:41,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:41,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:41,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:41,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:41,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 18:02:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:41,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:41,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:41,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:41,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:41,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:41,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:41,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:41,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:41,420 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 18:02:41,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662201603] [2020-10-12 18:02:41,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:02:41,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-12 18:02:41,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450066052] [2020-10-12 18:02:41,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:02:41,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:02:41,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:02:41,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:02:41,424 INFO L87 Difference]: Start difference. First operand 833 states and 1066 transitions. Second operand 14 states. [2020-10-12 18:02:41,815 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:02:42,440 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:02:42,857 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:02:43,576 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-10-12 18:02:43,846 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 18:02:44,101 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 18:02:44,636 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-10-12 18:02:44,922 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 18:02:45,493 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-10-12 18:02:46,411 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-10-12 18:02:46,937 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 194 [2020-10-12 18:02:47,401 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-10-12 18:02:47,821 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:02:48,098 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 18:02:48,349 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-12 18:02:49,546 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-12 18:02:50,219 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-10-12 18:02:50,739 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-10-12 18:02:51,239 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 196 [2020-10-12 18:02:53,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:02:53,546 INFO L93 Difference]: Finished difference Result 2320 states and 3503 transitions. [2020-10-12 18:02:53,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-12 18:02:53,546 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 103 [2020-10-12 18:02:53,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:02:53,562 INFO L225 Difference]: With dead ends: 2320 [2020-10-12 18:02:53,562 INFO L226 Difference]: Without dead ends: 1558 [2020-10-12 18:02:53,567 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=387, Invalid=1335, Unknown=0, NotChecked=0, Total=1722 [2020-10-12 18:02:53,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2020-10-12 18:02:53,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1347. [2020-10-12 18:02:53,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1347 states. [2020-10-12 18:02:53,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1830 transitions. [2020-10-12 18:02:53,823 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1830 transitions. Word has length 103 [2020-10-12 18:02:53,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:02:53,825 INFO L479 AbstractCegarLoop]: Abstraction has 1347 states and 1830 transitions. [2020-10-12 18:02:53,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:02:53,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1830 transitions. [2020-10-12 18:02:53,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-12 18:02:53,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:02:53,830 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:02:53,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:02:53,831 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:02:53,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:02:53,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1826200615, now seen corresponding path program 1 times [2020-10-12 18:02:53,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:02:53,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1892480273] [2020-10-12 18:02:53,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:02:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:53,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:53,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:53,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:54,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:54,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:54,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:58,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:58,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-12 18:02:58,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:02:58,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:02:58,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:58,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-12 18:02:58,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:58,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-12 18:02:58,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:59,145 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:02:59,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:02:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:59,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:59,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:59,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:59,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:59,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 18:02:59,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:59,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:59,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:59,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:02:59,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:59,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:02:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:59,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:59,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:59,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:59,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:59,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:59,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:59,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:59,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:59,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:59,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:59,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:02:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:59,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:59,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:59,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:59,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:59,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:02:59,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:59,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:59,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:59,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:59,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:59,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 18:02:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:59,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:59,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:59,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:59,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:59,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:59,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:59,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:59,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:59,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:59,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:59,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 18:02:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:59,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:59,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:59,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:59,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:59,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:02:59,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:59,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:59,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:59,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:59,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:59,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:02:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:59,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:59,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:59,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:59,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:59,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:02:59,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:59,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:02:59,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:02:59,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:02:59,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:59,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:02:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:59,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:59,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:59,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:59,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-12 18:02:59,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:02:59,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 18:02:59,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:59,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:59,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:02:59,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:02:59,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:59,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:59,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:59,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:59,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 18:02:59,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:59,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:02:59,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:59,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:59,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:59,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 18:02:59,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:59,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:59,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:59,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:59,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:02:59,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:59,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:02:59,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:59,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:59,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:59,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:59,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:59,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:59,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:59,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:59,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:02:59,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:59,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:59,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:59,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:59,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:59,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:59,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:59,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:02:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:59,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:59,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:59,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:02:59,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:59,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:02:59,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:59,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:59,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:59,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:59,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:59,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 18:02:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:59,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:59,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:59,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:59,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:59,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:02:59,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:59,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:59,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:59,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:59,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:59,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 18:02:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:59,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:59,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:59,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:02:59,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:59,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:02:59,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:59,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:59,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:59,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:02:59,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:59,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:02:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:59,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:59,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:59,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:59,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:59,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:02:59,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:59,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:59,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:59,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:59,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:59,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 18:02:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:59,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:59,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:59,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:59,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:59,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:59,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:59,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:02:59,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:02:59,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:02:59,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:59,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 18:02:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:59,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:59,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:59,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:59,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:59,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:59,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:59,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:59,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:59,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:59,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:59,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 18:02:59,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:59,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:59,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:59,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:59,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:59,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:59,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:59,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:59,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:59,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:59,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:59,438 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 18:02:59,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1892480273] [2020-10-12 18:02:59,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:02:59,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-12 18:02:59,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948978549] [2020-10-12 18:02:59,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 18:02:59,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:02:59,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 18:02:59,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:02:59,441 INFO L87 Difference]: Start difference. First operand 1347 states and 1830 transitions. Second operand 15 states. [2020-10-12 18:02:59,844 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:03:00,549 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:03:01,070 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:03:01,340 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:03:01,595 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:03:01,820 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:03:02,090 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:03:02,336 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:03:03,268 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:03:03,533 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 18:03:03,797 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:03:04,071 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:03:04,778 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:03:05,084 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:03:05,858 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-12 18:03:06,574 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-10-12 18:03:07,153 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-10-12 18:03:08,266 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-10-12 18:03:08,802 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-10-12 18:03:09,305 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-10-12 18:03:09,797 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-10-12 18:03:13,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:03:13,267 INFO L93 Difference]: Finished difference Result 3393 states and 4867 transitions. [2020-10-12 18:03:13,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-12 18:03:13,268 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 107 [2020-10-12 18:03:13,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:03:13,285 INFO L225 Difference]: With dead ends: 3393 [2020-10-12 18:03:13,285 INFO L226 Difference]: Without dead ends: 2133 [2020-10-12 18:03:13,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=672, Invalid=2190, Unknown=0, NotChecked=0, Total=2862 [2020-10-12 18:03:13,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2133 states. [2020-10-12 18:03:13,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2133 to 1786. [2020-10-12 18:03:13,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1786 states. [2020-10-12 18:03:13,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 2411 transitions. [2020-10-12 18:03:13,703 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 2411 transitions. Word has length 107 [2020-10-12 18:03:13,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:03:13,704 INFO L479 AbstractCegarLoop]: Abstraction has 1786 states and 2411 transitions. [2020-10-12 18:03:13,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 18:03:13,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 2411 transitions. [2020-10-12 18:03:13,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-12 18:03:13,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:03:13,710 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:03:13,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:03:13,711 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:03:13,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:03:13,711 INFO L82 PathProgramCache]: Analyzing trace with hash -11010945, now seen corresponding path program 1 times [2020-10-12 18:03:13,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:03:13,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1323895471] [2020-10-12 18:03:13,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:03:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:13,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:13,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:13,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:13,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:14,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:14,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-12 18:03:15,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:03:15,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1552 [2020-10-12 18:03:15,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:03:15,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:03:15,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 18:03:15,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:03:15,610 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:03:15,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:03:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:15,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:15,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 18:03:15,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:03:15,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:15,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:03:15,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:03:15,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:03:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:03:15,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:15,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:15,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:03:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:15,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:03:15,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:15,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:03:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:03:15,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:15,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:15,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:03:15,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:15,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:03:15,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:15,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 18:03:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:15,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:15,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:15,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:03:15,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:15,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:03:15,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:15,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 18:03:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:03:15,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:15,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:03:15,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:03:15,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:15,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:03:15,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:15,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:03:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:15,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:15,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:03:15,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:03:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:15,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:03:15,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:15,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:03:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-12 18:03:15,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:03:15,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:03:15,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:03:15,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:15,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 18:03:15,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:15,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:03:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 18:03:15,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:15,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:03:15,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:03:15,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:15,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 18:03:15,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:15,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:03:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:03:15,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:15,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:03:15,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:15,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:15,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:15,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:15,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:03:15,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:03:15,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:15,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:03:15,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:15,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:15,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:15,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:15,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:03:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:03:15,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:15,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:15,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:15,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:15,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:15,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:15,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 18:03:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:15,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:15,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:15,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:15,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:15,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:15,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:15,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 18:03:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:03:15,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:15,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:03:15,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:03:15,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:15,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:03:15,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:15,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:03:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:15,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:15,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:15,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:15,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:15,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:15,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:15,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-12 18:03:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 18:03:15,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:15,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:03:15,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:03:15,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:03:15,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 18:03:15,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:15,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:03:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:15,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:15,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:15,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:15,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:15,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:15,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:03:15,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:03:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:03:15,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:15,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:03:15,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:03:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:03:15,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:15,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:03:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:15,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:15,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:15,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:15,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:15,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:15,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:15,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:03:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:15,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:15,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:15,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:15,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:03:15,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:15,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:15,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-12 18:03:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:15,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:15,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:15,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:15,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:15,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:15,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:15,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:15,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:03:15,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:15,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:03:15,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 18:03:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:16,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:16,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:16,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:16,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:16,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:16,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:16,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:16,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:03:16,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:16,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:03:16,040 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-12 18:03:16,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1323895471] [2020-10-12 18:03:16,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:03:16,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 18:03:16,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398114975] [2020-10-12 18:03:16,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:03:16,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:03:16,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:03:16,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:03:16,049 INFO L87 Difference]: Start difference. First operand 1786 states and 2411 transitions. Second operand 9 states. [2020-10-12 18:03:16,626 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:03:18,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:03:18,613 INFO L93 Difference]: Finished difference Result 3569 states and 5066 transitions. [2020-10-12 18:03:18,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 18:03:18,614 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 130 [2020-10-12 18:03:18,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:03:18,627 INFO L225 Difference]: With dead ends: 3569 [2020-10-12 18:03:18,628 INFO L226 Difference]: Without dead ends: 1807 [2020-10-12 18:03:18,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:03:18,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2020-10-12 18:03:18,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1663. [2020-10-12 18:03:18,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1663 states. [2020-10-12 18:03:18,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1663 states to 1663 states and 2213 transitions. [2020-10-12 18:03:18,963 INFO L78 Accepts]: Start accepts. Automaton has 1663 states and 2213 transitions. Word has length 130 [2020-10-12 18:03:18,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:03:18,964 INFO L479 AbstractCegarLoop]: Abstraction has 1663 states and 2213 transitions. [2020-10-12 18:03:18,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:03:18,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1663 states and 2213 transitions. [2020-10-12 18:03:18,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-12 18:03:18,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:03:18,971 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:03:18,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:03:18,972 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:03:18,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:03:18,972 INFO L82 PathProgramCache]: Analyzing trace with hash -2066734881, now seen corresponding path program 1 times [2020-10-12 18:03:18,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:03:18,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278893445] [2020-10-12 18:03:18,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:03:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-10-12 18:03:19,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:03:19,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-12 18:03:19,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:03:19,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-12 18:03:19,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 18:03:19,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:03:19,422 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:03:19,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:03:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:19,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 18:03:19,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:03:19,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:03:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:03:19,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:03:19,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:03:19,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:03:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:03:19,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:03:19,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:03:19,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 18:03:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:19,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:03:19,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 18:03:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:03:19,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:03:19,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:03:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:19,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:03:19,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:03:19,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:03:19,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:03:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-12 18:03:19,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:03:19,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:03:19,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 18:03:19,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:03:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 18:03:19,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:03:19,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:03:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:03:19,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:03:19,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:03:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:03:19,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:03:19,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:03:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:03:19,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-12 18:03:19,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:03:19,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 18:03:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:19,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:19,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:03:19,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 18:03:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:03:19,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:19,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:03:19,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:03:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:19,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:19,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-12 18:03:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:03:19,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:03:19,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-12 18:03:19,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:03:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:19,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:19,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:03:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 18:03:19,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:03:19,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:03:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 18:03:19,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:19,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:03:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:19,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:03:19,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:03:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:03:19,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:03:19,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:03:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:03:19,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:03:19,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 18:03:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:03:19,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:19,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:03:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:19,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:03:19,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 18:03:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:19,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:19,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:03:19,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-12 18:03:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 18:03:19,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:03:19,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-12 18:03:19,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:03:19,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:03:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 18:03:19,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:19,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:03:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:19,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:19,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:03:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:03:19,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:19,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:03:19,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:03:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:03:19,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:03:19,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:03:19,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-12 18:03:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:19,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:19,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:03:19,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:03:19,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-12 18:03:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:03:19,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:03:19,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:03:19,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:03:19,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:03:19,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:03:19,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:03:19,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:03:19,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:03:19,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:03:19,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:03:19,980 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-12 18:03:19,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278893445] [2020-10-12 18:03:19,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:03:19,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 18:03:19,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571704475] [2020-10-12 18:03:19,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 18:03:19,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:03:19,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 18:03:19,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-12 18:03:19,985 INFO L87 Difference]: Start difference. First operand 1663 states and 2213 transitions. Second operand 7 states. [2020-10-12 18:03:20,454 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:03:21,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:03:21,502 INFO L93 Difference]: Finished difference Result 2614 states and 3299 transitions. [2020-10-12 18:03:21,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 18:03:21,503 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2020-10-12 18:03:21,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:03:21,512 INFO L225 Difference]: With dead ends: 2614 [2020-10-12 18:03:21,512 INFO L226 Difference]: Without dead ends: 1434 [2020-10-12 18:03:21,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:03:21,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2020-10-12 18:03:21,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1372. [2020-10-12 18:03:21,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1372 states. [2020-10-12 18:03:21,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1662 transitions. [2020-10-12 18:03:21,810 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1662 transitions. Word has length 178 [2020-10-12 18:03:21,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:03:21,811 INFO L479 AbstractCegarLoop]: Abstraction has 1372 states and 1662 transitions. [2020-10-12 18:03:21,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 18:03:21,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1662 transitions. [2020-10-12 18:03:21,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-12 18:03:21,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:03:21,815 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:03:21,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:03:21,815 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:03:21,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:03:21,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1788025149, now seen corresponding path program 1 times [2020-10-12 18:03:21,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:03:21,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [530753423] [2020-10-12 18:03:21,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:03:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 18:03:21,867 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 18:03:21,868 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 18:03:21,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:03:21,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 06:03:21 BoogieIcfgContainer [2020-10-12 18:03:21,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 18:03:21,931 INFO L168 Benchmark]: Toolchain (without parser) took 85174.42 ms. Allocated memory was 139.5 MB in the beginning and 1.1 GB in the end (delta: 922.2 MB). Free memory was 101.6 MB in the beginning and 286.7 MB in the end (delta: -185.1 MB). Peak memory consumption was 737.2 MB. Max. memory is 7.1 GB. [2020-10-12 18:03:21,931 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 18:03:21,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.69 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.4 MB in the beginning and 171.2 MB in the end (delta: -69.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2020-10-12 18:03:21,933 INFO L168 Benchmark]: Boogie Preprocessor took 91.17 ms. Allocated memory is still 202.9 MB. Free memory was 171.2 MB in the beginning and 167.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-10-12 18:03:21,937 INFO L168 Benchmark]: RCFGBuilder took 1088.93 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 167.1 MB in the beginning and 198.0 MB in the end (delta: -30.9 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. [2020-10-12 18:03:21,939 INFO L168 Benchmark]: TraceAbstraction took 83331.77 ms. Allocated memory was 235.9 MB in the beginning and 1.1 GB in the end (delta: 825.8 MB). Free memory was 198.0 MB in the beginning and 286.7 MB in the end (delta: -88.7 MB). Peak memory consumption was 737.1 MB. Max. memory is 7.1 GB. [2020-10-12 18:03:21,949 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 657.69 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.4 MB in the beginning and 171.2 MB in the end (delta: -69.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.17 ms. Allocated memory is still 202.9 MB. Free memory was 171.2 MB in the beginning and 167.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1088.93 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 167.1 MB in the beginning and 198.0 MB in the end (delta: -30.9 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 83331.77 ms. Allocated memory was 235.9 MB in the beginning and 1.1 GB in the end (delta: 825.8 MB). Free memory was 198.0 MB in the beginning and 286.7 MB in the end (delta: -88.7 MB). Peak memory consumption was 737.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 247]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L149] int waterLevel = 1; [L150] int methaneLevelCritical = 0; [L349] int pumpRunning = 0; [L350] int systemActive = 1; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L281] int splverifierCounter ; [L282] int tmp ; [L283] int tmp___0 ; [L284] int tmp___1 ; [L285] int tmp___2 ; [L288] splverifierCounter = 0 [L290] COND TRUE 1 [L292] COND TRUE splverifierCounter < 4 [L298] tmp = __VERIFIER_nondet_int() [L300] COND TRUE \read(tmp) [L302] CALL waterRise() [L167] COND TRUE waterLevel < 2 [L168] waterLevel = waterLevel + 1 [L302] RET waterRise() [L308] tmp___0 = __VERIFIER_nondet_int() [L310] COND FALSE !(\read(tmp___0)) [L318] tmp___2 = __VERIFIER_nondet_int() [L320] COND FALSE !(\read(tmp___2)) [L326] tmp___1 = __VERIFIER_nondet_int() [L328] COND TRUE \read(tmp___1) [L335] CALL timeShift() [L356] COND FALSE !(\read(pumpRunning)) [L363] COND TRUE \read(systemActive) [L365] CALL processEnvironment() [L411] int tmp ; [L414] COND FALSE !(\read(pumpRunning)) [L429] CALL processEnvironment__wrappee__highWaterSensor() [L385] int tmp ; [L388] COND TRUE ! pumpRunning [L390] CALL, EXPR isHighWaterLevel() [L508] int retValue_acc ; [L509] int tmp ; [L510] int tmp___0 ; [L514] CALL, EXPR isHighWaterSensorDry() [L229] int retValue_acc ; [L232] COND FALSE !(waterLevel < 2) [L236] retValue_acc = 0 [L237] return (retValue_acc); [L514] RET, EXPR isHighWaterSensorDry() [L514] tmp = isHighWaterSensorDry() [L516] COND FALSE !(\read(tmp)) [L519] tmp___0 = 1 [L521] retValue_acc = tmp___0 [L522] return (retValue_acc); [L390] RET, EXPR isHighWaterLevel() [L390] tmp = isHighWaterLevel() [L392] COND TRUE \read(tmp) [L394] CALL activatePump() [L439] pumpRunning = 1 [L394] RET activatePump() [L429] RET processEnvironment__wrappee__highWaterSensor() [L365] RET processEnvironment() [L371] CALL __utac_acc__Specification4_spec__1() [L254] int tmp ; [L255] int tmp___0 ; [L259] CALL, EXPR getWaterLevel() [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); [L259] RET, EXPR getWaterLevel() [L259] tmp = getWaterLevel() [L261] COND FALSE !(tmp == 0) [L371] RET __utac_acc__Specification4_spec__1() [L335] RET timeShift() [L290] COND TRUE 1 [L292] COND TRUE splverifierCounter < 4 [L298] tmp = __VERIFIER_nondet_int() [L300] COND FALSE !(\read(tmp)) [L308] tmp___0 = __VERIFIER_nondet_int() [L310] COND FALSE !(\read(tmp___0)) [L318] tmp___2 = __VERIFIER_nondet_int() [L320] COND FALSE !(\read(tmp___2)) [L326] tmp___1 = __VERIFIER_nondet_int() [L328] COND TRUE \read(tmp___1) [L335] CALL timeShift() [L356] COND TRUE \read(pumpRunning) [L358] CALL lowerWaterLevel() [L155] COND TRUE waterLevel > 0 [L156] waterLevel = waterLevel - 1 [L358] RET lowerWaterLevel() [L363] COND TRUE \read(systemActive) [L365] CALL processEnvironment() [L411] int tmp ; [L414] COND TRUE \read(pumpRunning) [L416] CALL, EXPR isMethaneAlarm() [L452] int retValue_acc ; [L456] CALL, EXPR isMethaneLevelCritical() [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] return (retValue_acc); [L456] RET, EXPR isMethaneLevelCritical() [L456] retValue_acc = isMethaneLevelCritical() [L458] return (retValue_acc); [L416] RET, EXPR isMethaneAlarm() [L416] tmp = isMethaneAlarm() [L418] COND FALSE !(\read(tmp)) [L424] CALL processEnvironment__wrappee__highWaterSensor() [L385] int tmp ; [L388] COND FALSE !(! pumpRunning) [L403] FCALL processEnvironment__wrappee__base() [L424] RET processEnvironment__wrappee__highWaterSensor() [L365] RET processEnvironment() [L371] CALL __utac_acc__Specification4_spec__1() [L254] int tmp ; [L255] int tmp___0 ; [L259] CALL, EXPR getWaterLevel() [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); [L259] RET, EXPR getWaterLevel() [L259] tmp = getWaterLevel() [L261] COND FALSE !(tmp == 0) [L371] RET __utac_acc__Specification4_spec__1() [L335] RET timeShift() [L290] COND TRUE 1 [L292] COND TRUE splverifierCounter < 4 [L298] tmp = __VERIFIER_nondet_int() [L300] COND FALSE !(\read(tmp)) [L308] tmp___0 = __VERIFIER_nondet_int() [L310] COND FALSE !(\read(tmp___0)) [L318] tmp___2 = __VERIFIER_nondet_int() [L320] COND FALSE !(\read(tmp___2)) [L326] tmp___1 = __VERIFIER_nondet_int() [L328] COND TRUE \read(tmp___1) [L335] CALL timeShift() [L356] COND TRUE \read(pumpRunning) [L358] CALL lowerWaterLevel() [L155] COND TRUE waterLevel > 0 [L156] waterLevel = waterLevel - 1 [L358] RET lowerWaterLevel() [L363] COND TRUE \read(systemActive) [L365] CALL processEnvironment() [L411] int tmp ; [L414] COND TRUE \read(pumpRunning) [L416] CALL, EXPR isMethaneAlarm() [L452] int retValue_acc ; [L456] CALL, EXPR isMethaneLevelCritical() [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] return (retValue_acc); [L456] RET, EXPR isMethaneLevelCritical() [L456] retValue_acc = isMethaneLevelCritical() [L458] return (retValue_acc); [L416] RET, EXPR isMethaneAlarm() [L416] tmp = isMethaneAlarm() [L418] COND FALSE !(\read(tmp)) [L424] CALL processEnvironment__wrappee__highWaterSensor() [L385] int tmp ; [L388] COND FALSE !(! pumpRunning) [L403] FCALL processEnvironment__wrappee__base() [L424] RET processEnvironment__wrappee__highWaterSensor() [L365] RET processEnvironment() [L371] CALL __utac_acc__Specification4_spec__1() [L254] int tmp ; [L255] int tmp___0 ; [L259] CALL, EXPR getWaterLevel() [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); [L259] RET, EXPR getWaterLevel() [L259] tmp = getWaterLevel() [L261] COND TRUE tmp == 0 [L263] CALL, EXPR isPumpRunning() [L463] int retValue_acc ; [L466] retValue_acc = pumpRunning [L467] return (retValue_acc); [L263] RET, EXPR isPumpRunning() [L263] tmp___0 = isPumpRunning() [L265] COND TRUE \read(tmp___0) [L267] CALL __automaton_fail() [L247] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 229 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 83.2s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 50.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1096 SDtfs, 3617 SDslu, 2139 SDs, 0 SdLazy, 10758 SolverSat, 3108 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 466 GetRequests, 279 SyntacticMatches, 1 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1830 ImplicationChecksByTransitivity, 25.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1786occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 1016 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 30.5s InterpolantComputationTime, 930 NumberOfCodeBlocks, 930 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 735 ConstructedInterpolants, 0 QuantifiedInterpolants, 303673 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 141/158 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...