/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:19:23,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:19:23,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:19:23,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:19:23,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:19:23,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:19:23,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:19:23,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:19:23,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:19:23,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:19:23,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:19:23,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:19:23,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:19:23,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:19:23,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:19:23,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:19:23,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:19:23,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:19:23,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:19:23,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:19:23,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:19:23,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:19:23,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:19:23,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:19:23,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:19:23,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:19:23,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:19:23,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:19:23,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:19:23,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:19:23,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:19:23,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:19:23,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:19:23,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:19:23,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:19:23,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:19:23,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:19:23,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:19:23,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:19:23,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:19:23,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:19:23,477 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:19:23,525 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:19:23,525 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:19:23,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:19:23,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:19:23,528 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:19:23,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:19:23,529 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:19:23,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:19:23,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:19:23,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:19:23,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:19:23,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:19:23,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:19:23,531 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:19:23,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:19:23,532 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:19:23,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:19:23,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:19:23,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:19:23,533 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:19:23,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:19:23,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:19:23,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:19:23,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:19:23,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:19:23,534 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:19:23,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:19:23,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:19:23,535 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:19:23,535 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 20:19:23,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:19:23,992 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:19:23,996 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:19:24,000 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:19:24,000 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:19:24,001 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2020-09-24 20:19:24,076 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c469dad0/fdd19eb47eb54a19b16941f8ab8afb8a/FLAG076400d6c [2020-09-24 20:19:24,684 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:19:24,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2020-09-24 20:19:24,700 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c469dad0/fdd19eb47eb54a19b16941f8ab8afb8a/FLAG076400d6c [2020-09-24 20:19:24,921 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c469dad0/fdd19eb47eb54a19b16941f8ab8afb8a [2020-09-24 20:19:24,934 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:19:24,940 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:19:24,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:19:24,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:19:24,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:19:24,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:19:24" (1/1) ... [2020-09-24 20:19:24,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7845d484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:24, skipping insertion in model container [2020-09-24 20:19:24,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:19:24" (1/1) ... [2020-09-24 20:19:24,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:19:25,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:19:25,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:19:25,383 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:19:25,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:19:25,655 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:19:25,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:25 WrapperNode [2020-09-24 20:19:25,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:19:25,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:19:25,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:19:25,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:19:25,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:25" (1/1) ... [2020-09-24 20:19:25,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:25" (1/1) ... [2020-09-24 20:19:25,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:25" (1/1) ... [2020-09-24 20:19:25,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:25" (1/1) ... [2020-09-24 20:19:25,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:25" (1/1) ... [2020-09-24 20:19:25,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:25" (1/1) ... [2020-09-24 20:19:25,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:25" (1/1) ... [2020-09-24 20:19:25,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:19:25,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:19:25,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:19:25,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:19:25,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:19:25,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:19:25,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:19:25,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:19:25,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:19:25,833 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:19:25,834 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:19:25,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:19:25,834 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:19:25,834 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:19:25,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 20:19:25,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 20:19:25,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 20:19:25,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:19:25,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:19:25,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:19:25,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:19:25,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:19:25,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:19:25,836 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:19:25,836 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:19:25,836 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:19:25,838 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:19:25,839 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:19:25,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:19:25,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:19:25,841 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:19:25,841 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:19:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:19:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:19:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:19:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:19:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:19:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:19:25,843 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:19:25,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:19:25,843 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 20:19:25,843 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:19:25,843 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:19:25,843 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:19:25,843 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:19:25,844 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:19:25,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:19:25,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:19:25,844 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:19:25,844 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:19:25,844 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:19:25,845 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:19:25,845 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:19:25,845 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:19:25,845 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:19:25,845 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:19:25,846 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:19:25,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 20:19:25,846 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:19:25,847 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:19:25,847 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:19:25,847 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:19:25,847 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:19:25,847 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:19:25,847 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:19:25,848 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:19:25,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 20:19:25,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 20:19:25,848 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:19:25,848 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:19:25,849 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:19:25,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:19:25,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:19:25,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:19:25,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:19:25,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:19:25,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:19:25,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:19:25,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:19:25,850 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:19:25,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:19:25,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:19:25,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:19:25,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:19:25,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:19:25,851 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:19:25,851 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:19:25,851 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:19:25,851 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:19:25,851 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:19:25,852 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:19:25,852 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 20:19:25,852 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:19:25,852 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:19:25,852 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:19:25,852 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:19:25,852 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:19:25,852 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:19:25,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:19:25,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:19:25,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:19:27,071 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:19:27,072 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:19:27,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:19:27 BoogieIcfgContainer [2020-09-24 20:19:27,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:19:27,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:19:27,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:19:27,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:19:27,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:19:24" (1/3) ... [2020-09-24 20:19:27,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f9fe24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:19:27, skipping insertion in model container [2020-09-24 20:19:27,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:25" (2/3) ... [2020-09-24 20:19:27,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f9fe24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:19:27, skipping insertion in model container [2020-09-24 20:19:27,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:19:27" (3/3) ... [2020-09-24 20:19:27,089 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product38.cil.c [2020-09-24 20:19:27,101 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:19:27,112 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:19:27,135 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:19:27,172 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:19:27,173 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:19:27,173 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:19:27,173 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:19:27,173 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:19:27,173 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:19:27,174 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:19:27,174 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:19:27,203 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states. [2020-09-24 20:19:27,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 20:19:27,222 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:19:27,223 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:19:27,224 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:19:27,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:19:27,232 INFO L82 PathProgramCache]: Analyzing trace with hash -548539878, now seen corresponding path program 1 times [2020-09-24 20:19:27,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:19:27,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711699500] [2020-09-24 20:19:27,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:19:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:27,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:27,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:29,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:29,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:32,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:32,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:32,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 20:19:32,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:19:32,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5076 [2020-09-24 20:19:32,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:32,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:19:32,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 20:19:32,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 20:19:32,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-24 20:19:33,389 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:19:33,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:33,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:33,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:33,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:19:33,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:33,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-09-24 20:19:33,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:33,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:33,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:33,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 20:19:33,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:33,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:19:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:33,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:33,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:33,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:33,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:33,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:19:33,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:33,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:33,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:33,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:19:33,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:33,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:19:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:33,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:33,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:33,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:33,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:33,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:33,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:33,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:33,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:33,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:19:33,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:33,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:19:33,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:33,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:33,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:33,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:33,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:33,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:19:33,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:33,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:33,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:33,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:19:33,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:33,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:19:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:33,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:33,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:33,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:33,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:33,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:19:33,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:33,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:33,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:33,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:19:33,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:33,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:19:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:33,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:33,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:33,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:19:33,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:33,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:33,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:33,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:33,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:33,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:19:33,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:33,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:19:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:33,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:33,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:33,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:19:33,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:33,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:19:33,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:33,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:33,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:33,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:19:33,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:33,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:33,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:33,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:33,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:33,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:33,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:33,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:33,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:33,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:33,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:33,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:33,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 20:19:33,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:33,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:33,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:33,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:33,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:33,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:19:33,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:33,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:33,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:33,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:19:33,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:33,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 20:19:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:33,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:33,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:33,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:33,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:33,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:19:33,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:33,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:19:33,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:33,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:19:33,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:34,044 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 20:19:34,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711699500] [2020-09-24 20:19:34,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:19:34,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:19:34,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727026847] [2020-09-24 20:19:34,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:19:34,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:19:34,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:19:34,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:19:34,077 INFO L87 Difference]: Start difference. First operand 323 states. Second operand 9 states. [2020-09-24 20:19:34,891 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:19:35,797 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:36,095 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:19:37,503 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:19:37,804 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:38,143 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:19:38,606 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:38,939 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:19:39,258 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:40,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:19:40,137 INFO L93 Difference]: Finished difference Result 616 states and 742 transitions. [2020-09-24 20:19:40,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 20:19:40,139 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 20:19:40,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:19:40,161 INFO L225 Difference]: With dead ends: 616 [2020-09-24 20:19:40,161 INFO L226 Difference]: Without dead ends: 417 [2020-09-24 20:19:40,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:19:40,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-09-24 20:19:40,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 369. [2020-09-24 20:19:40,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-09-24 20:19:40,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 412 transitions. [2020-09-24 20:19:40,312 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 412 transitions. Word has length 160 [2020-09-24 20:19:40,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:19:40,314 INFO L479 AbstractCegarLoop]: Abstraction has 369 states and 412 transitions. [2020-09-24 20:19:40,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:19:40,314 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 412 transitions. [2020-09-24 20:19:40,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-24 20:19:40,321 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:19:40,321 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:19:40,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:19:40,322 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:19:40,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:19:40,322 INFO L82 PathProgramCache]: Analyzing trace with hash -173606010, now seen corresponding path program 1 times [2020-09-24 20:19:40,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:19:40,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [494730010] [2020-09-24 20:19:40,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:19:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:40,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:40,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:40,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:40,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:43,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:45,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:45,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-09-24 20:19:45,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:19:45,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-24 20:19:45,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:45,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:19:45,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 20:19:45,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-24 20:19:45,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:45,750 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:19:45,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:45,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:19:46,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:46,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-24 20:19:46,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:46,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:46,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 20:19:46,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:46,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:19:46,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:46,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:46,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:46,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:46,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:46,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:46,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:19:46,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:46,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:19:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:46,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:46,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:46,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:46,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:46,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:46,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:19:46,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:46,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:19:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:46,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:46,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:46,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:19:46,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:46,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:46,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:19:46,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:46,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:19:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:46,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:46,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:46,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:46,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:46,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:46,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:19:46,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:46,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:19:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:46,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:19:46,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:46,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:19:46,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:46,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:46,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:19:46,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:46,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:19:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:46,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 20:19:46,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:46,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 20:19:46,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:19:46,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:19:46,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 20:19:46,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:46,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:46,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:19:46,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:46,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:19:46,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:46,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:46,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:19:46,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:46,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:46,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:46,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:46,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:46,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:46,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:46,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:46,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:46,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 20:19:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:46,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:19:46,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:46,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:19:46,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:19:46,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:46,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 20:19:46,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:46,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:19:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:46,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:46,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:46,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:19:46,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:19:46,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:46,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:19:46,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:46,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 20:19:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:46,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:19:46,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:46,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:46,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:46,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:19:46,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:46,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:46,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:46,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:46,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:46,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:46,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:46,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:46,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:46,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:19:46,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 20:19:46,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:46,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:19:46,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:19:46,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 20:19:46,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:19:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:19:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:19:46,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:46,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:19:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:46,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:19:46,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:46,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 20:19:46,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:19:46,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:19:46,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:19:46,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:46,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:19:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:46,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:19:46,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:46,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 20:19:46,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:19:46,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:46,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:19:46,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:46,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:19:46,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:46,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:19:46,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:46,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:19:46,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:46,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:46,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:46,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:46,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:19:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:46,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:19:46,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:46,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:46,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:46,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:19:46,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:46,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:46,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 20:19:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:46,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:46,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:46,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:46,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:46,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:19:46,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:46,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:46,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 20:19:46,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:46,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:46,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:46,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:46,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:46,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:46,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:46,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:46,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:19:46,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:46,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:46,993 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-24 20:19:46,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [494730010] [2020-09-24 20:19:46,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:19:46,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 20:19:46,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934355461] [2020-09-24 20:19:46,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 20:19:46,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:19:46,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 20:19:46,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:19:46,998 INFO L87 Difference]: Start difference. First operand 369 states and 412 transitions. Second operand 19 states. [2020-09-24 20:19:47,553 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:19:49,133 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-09-24 20:19:49,931 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:50,297 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:19:50,677 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:51,073 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:19:51,413 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:52,058 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:19:52,434 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:19:53,052 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-24 20:19:53,455 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-24 20:19:54,104 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 20:19:54,480 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:19:55,119 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-24 20:19:55,504 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:19:56,169 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 20:19:56,508 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:19:57,128 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-24 20:19:58,262 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 20:19:58,952 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 196 [2020-09-24 20:19:59,664 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 199 [2020-09-24 20:20:00,330 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-09-24 20:20:01,028 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 194 [2020-09-24 20:20:01,641 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-09-24 20:20:03,615 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:20:03,932 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:04,257 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:20:04,604 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:04,910 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:20:05,376 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:05,729 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:20:06,103 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 20:20:06,514 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:20:06,876 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:20:07,170 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:20:08,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:20:08,805 INFO L93 Difference]: Finished difference Result 1426 states and 2050 transitions. [2020-09-24 20:20:08,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-09-24 20:20:08,806 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 235 [2020-09-24 20:20:08,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:20:08,821 INFO L225 Difference]: With dead ends: 1426 [2020-09-24 20:20:08,822 INFO L226 Difference]: Without dead ends: 1172 [2020-09-24 20:20:08,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1449 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=840, Invalid=4272, Unknown=0, NotChecked=0, Total=5112 [2020-09-24 20:20:08,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2020-09-24 20:20:09,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 867. [2020-09-24 20:20:09,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-09-24 20:20:09,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1036 transitions. [2020-09-24 20:20:09,022 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1036 transitions. Word has length 235 [2020-09-24 20:20:09,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:20:09,023 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1036 transitions. [2020-09-24 20:20:09,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 20:20:09,023 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1036 transitions. [2020-09-24 20:20:09,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 20:20:09,030 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:20:09,030 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:20:09,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:20:09,031 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:20:09,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:20:09,031 INFO L82 PathProgramCache]: Analyzing trace with hash -967194783, now seen corresponding path program 1 times [2020-09-24 20:20:09,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:20:09,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774709545] [2020-09-24 20:20:09,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:20:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:09,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:09,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:09,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-24 20:20:09,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:09,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 822 [2020-09-24 20:20:09,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:09,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:20:09,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 198 [2020-09-24 20:20:09,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:20:09,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:10,263 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:20:10,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:10,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:10,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:10,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:20:10,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:10,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 20:20:10,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:10,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:10,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:10,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:10,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:10,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:20:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:10,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:10,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:10,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:10,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:10,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:20:10,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:10,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:10,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:10,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:10,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:10,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:20:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:10,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:10,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:10,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:10,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:10,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:20:10,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:10,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:10,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:10,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:10,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:10,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:20:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:10,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:10,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:10,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:10,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:10,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:20:10,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:10,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:10,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:10,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:10,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:10,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:20:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:10,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:10,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:10,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:10,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:10,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:20:10,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:10,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:10,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:10,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:10,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:10,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:20:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:10,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:10,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:10,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:20:10,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:10,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:10,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:10,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:10,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:10,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:10,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:10,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 20:20:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:10,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:10,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:10,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:20:10,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:10,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:10,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:10,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:10,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:10,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:10,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:10,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:20:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:10,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:10,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:10,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:20:10,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:10,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:10,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:10,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:10,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:10,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:10,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:10,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:10,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:10,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:10,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:10,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:10,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:10,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:10,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:10,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:10,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:10,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:10,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 20:20:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:10,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:10,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:10,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:20:10,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:10,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 20:20:10,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:10,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:20:10,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 20:20:10,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:20:10,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:10,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:20:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:10,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:10,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:10,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:20:10,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:10,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 20:20:10,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:10,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:20:10,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:20:10,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:20:10,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:10,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:20:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:10,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:10,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:10,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:20:10,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:10,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 20:20:10,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:10,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:20:10,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:20:10,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:20:10,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:10,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:20:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:10,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:10,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:10,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:20:10,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:10,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:20:10,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:20:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:20:10,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:10,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:20:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:10,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:10,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:10,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:20:10,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:10,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:20:10,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:10,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:10,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:20:10,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:10,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:10,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 20:20:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:10,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:10,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:10,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:10,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:10,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:10,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:10,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:10,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:20:10,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:10,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:10,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 20:20:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:10,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:10,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:10,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:10,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:10,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:10,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:10,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:10,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:20:10,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:10,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:10,815 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 20:20:10,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774709545] [2020-09-24 20:20:10,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:20:10,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 20:20:10,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291173886] [2020-09-24 20:20:10,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:20:10,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:20:10,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:20:10,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:20:10,819 INFO L87 Difference]: Start difference. First operand 867 states and 1036 transitions. Second operand 10 states. [2020-09-24 20:20:12,209 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:20:12,530 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:20:12,839 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:20:13,141 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:20:13,426 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:20:14,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:20:14,509 INFO L93 Difference]: Finished difference Result 1942 states and 2624 transitions. [2020-09-24 20:20:14,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 20:20:14,510 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 212 [2020-09-24 20:20:14,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:20:14,522 INFO L225 Difference]: With dead ends: 1942 [2020-09-24 20:20:14,522 INFO L226 Difference]: Without dead ends: 1170 [2020-09-24 20:20:14,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:20:14,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2020-09-24 20:20:14,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 843. [2020-09-24 20:20:14,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 843 states. [2020-09-24 20:20:14,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 995 transitions. [2020-09-24 20:20:14,663 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 995 transitions. Word has length 212 [2020-09-24 20:20:14,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:20:14,664 INFO L479 AbstractCegarLoop]: Abstraction has 843 states and 995 transitions. [2020-09-24 20:20:14,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 20:20:14,664 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 995 transitions. [2020-09-24 20:20:14,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-09-24 20:20:14,671 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:20:14,672 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:20:14,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:20:14,672 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:20:14,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:20:14,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1984334838, now seen corresponding path program 1 times [2020-09-24 20:20:14,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:20:14,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1369185666] [2020-09-24 20:20:14,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:20:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:14,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:15,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:15,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:15,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:16,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:16,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:17,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking...