/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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_spec4_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:22:43,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:22:43,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:22:43,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:22:43,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:22:43,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:22:43,728 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:22:43,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:22:43,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:22:43,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:22:43,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:22:43,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:22:43,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:22:43,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:22:43,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:22:43,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:22:43,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:22:43,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:22:43,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:22:43,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:22:43,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:22:43,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:22:43,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:22:43,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:22:43,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:22:43,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:22:43,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:22:43,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:22:43,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:22:43,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:22:43,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:22:43,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:22:43,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:22:43,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:22:43,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:22:43,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:22:43,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:22:43,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:22:43,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:22:43,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:22:43,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:22:43,790 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:22:43,840 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:22:43,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:22:43,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:22:43,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:22:43,843 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:22:43,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:22:43,844 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:22:43,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:22:43,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:22:43,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:22:43,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:22:43,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:22:43,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:22:43,847 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:22:43,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:22:43,847 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:22:43,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:22:43,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:22:43,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:22:43,848 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:22:43,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:22:43,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:22:43,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:22:43,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:22:43,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:22:43,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:22:43,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:22:43,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:22:43,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:22:43,850 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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:22:44,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:22:44,344 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:22:44,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:22:44,351 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:22:44,352 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:22:44,353 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product46.cil.c [2020-09-25 14:22:44,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c502edaf/bb1054591f1749cfbcdcd97b71a59ced/FLAG95b041c9d [2020-09-25 14:22:45,059 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:22:45,060 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product46.cil.c [2020-09-25 14:22:45,077 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c502edaf/bb1054591f1749cfbcdcd97b71a59ced/FLAG95b041c9d [2020-09-25 14:22:45,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c502edaf/bb1054591f1749cfbcdcd97b71a59ced [2020-09-25 14:22:45,324 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:22:45,331 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:22:45,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:22:45,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:22:45,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:22:45,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:22:45" (1/1) ... [2020-09-25 14:22:45,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:45, skipping insertion in model container [2020-09-25 14:22:45,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:22:45" (1/1) ... [2020-09-25 14:22:45,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:22:45,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:22:45,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:22:45,828 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:22:46,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:22:46,146 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:22:46,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:46 WrapperNode [2020-09-25 14:22:46,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:22:46,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:22:46,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:22:46,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:22:46,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:46" (1/1) ... [2020-09-25 14:22:46,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:46" (1/1) ... [2020-09-25 14:22:46,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:46" (1/1) ... [2020-09-25 14:22:46,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:46" (1/1) ... [2020-09-25 14:22:46,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:46" (1/1) ... [2020-09-25 14:22:46,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:46" (1/1) ... [2020-09-25 14:22:46,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:46" (1/1) ... [2020-09-25 14:22:46,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:22:46,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:22:46,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:22:46,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:22:46,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:22:46,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:22:46,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:22:46,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:22:46,341 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:22:46,342 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:22:46,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:22:46,342 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:22:46,343 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:22:46,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 14:22:46,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:22:46,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:22:46,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:22:46,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:22:46,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:22:46,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:22:46,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:22:46,345 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:22:46,346 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:22:46,346 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 14:22:46,346 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:22:46,346 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 14:22:46,347 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:22:46,347 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:22:46,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:22:46,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:22:46,348 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:22:46,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 14:22:46,349 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 14:22:46,349 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:22:46,349 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:22:46,349 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:22:46,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:22:46,349 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:22:46,349 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:22:46,350 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 14:22:46,350 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:22:46,350 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:22:46,350 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:22:46,350 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:22:46,352 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:22:46,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:22:46,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:22:46,352 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:22:46,353 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:22:46,353 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:22:46,353 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:22:46,353 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:22:46,353 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:22:46,353 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:22:46,354 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:22:46,354 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:22:46,354 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:22:46,354 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:22:46,354 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:22:46,355 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:22:46,355 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:22:46,355 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:22:46,355 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:22:46,355 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:22:46,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 14:22:46,355 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:22:46,356 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:22:46,356 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:22:46,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:22:46,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:22:46,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:22:46,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:22:46,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:22:46,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:22:46,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:22:46,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:22:46,357 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:22:46,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:22:46,358 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:22:46,358 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:22:46,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:22:46,358 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:22:46,358 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:22:46,358 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:22:46,359 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:22:46,359 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 14:22:46,359 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:22:46,359 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:22:46,359 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 14:22:46,359 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:22:46,359 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:22:46,360 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 14:22:46,360 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 14:22:46,360 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:22:46,360 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 14:22:46,360 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:22:46,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:22:46,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:22:46,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:22:47,506 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:22:47,506 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:22:47,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:22:47 BoogieIcfgContainer [2020-09-25 14:22:47,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:22:47,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:22:47,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:22:47,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:22:47,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:22:45" (1/3) ... [2020-09-25 14:22:47,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63cea7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:22:47, skipping insertion in model container [2020-09-25 14:22:47,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:46" (2/3) ... [2020-09-25 14:22:47,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63cea7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:22:47, skipping insertion in model container [2020-09-25 14:22:47,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:22:47" (3/3) ... [2020-09-25 14:22:47,524 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product46.cil.c [2020-09-25 14:22:47,533 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:22:47,543 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:22:47,564 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:22:47,595 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:22:47,595 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:22:47,595 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:22:47,595 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:22:47,595 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:22:47,596 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:22:47,596 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:22:47,596 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:22:47,624 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2020-09-25 14:22:47,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:22:47,643 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:22:47,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:22:47,645 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:22:47,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:22:47,653 INFO L82 PathProgramCache]: Analyzing trace with hash 2069436890, now seen corresponding path program 1 times [2020-09-25 14:22:47,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:22:47,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [601007754] [2020-09-25 14:22:47,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:22:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:48,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:48,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:49,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:50,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:53,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:53,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 14:22:53,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:22:53,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 14:22:53,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:53,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:53,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:22:53,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 14:22:53,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 14:22:53,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:22:53,475 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:22:53,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:22:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:53,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:53,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:53,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:22:53,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:53,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-09-25 14:22:53,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:53,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:53,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:53,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:53,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 14:22:53,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:22:53,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:22:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:53,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:53,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:53,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:53,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:53,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:22:53,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:53,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:53,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:53,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:53,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:53,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:53,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:22:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:54,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:54,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:54,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:54,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:54,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:22:54,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:54,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:54,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:54,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:54,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:54,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:54,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:22:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:54,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:54,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:54,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:54,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:54,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 14:22:54,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:54,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:54,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:54,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:54,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:22:54,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:54,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:22:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:54,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:54,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:54,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:54,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:54,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:22:54,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:54,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:54,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:54,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:54,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:54,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:54,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:22:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:54,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:54,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:54,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:54,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:54,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:22:54,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:54,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:54,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:54,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:22:54,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:54,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:54,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:22:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:54,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:54,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:54,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:54,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:54,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:22:54,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:54,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:54,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:54,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:22:54,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:54,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:54,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:22:54,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [601007754] [2020-09-25 14:22:54,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:22:54,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:22:54,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680330879] [2020-09-25 14:22:54,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:22:54,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:22:54,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:22:54,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:22:54,137 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 4 states. [2020-09-25 14:22:54,832 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:22:56,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:22:56,129 INFO L93 Difference]: Finished difference Result 506 states and 600 transitions. [2020-09-25 14:22:56,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:22:56,132 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 14:22:56,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:22:56,152 INFO L225 Difference]: With dead ends: 506 [2020-09-25 14:22:56,153 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 14:22:56,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:22:56,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 14:22:56,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 268. [2020-09-25 14:22:56,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-25 14:22:56,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 290 transitions. [2020-09-25 14:22:56,301 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 290 transitions. Word has length 142 [2020-09-25 14:22:56,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:22:56,302 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 290 transitions. [2020-09-25 14:22:56,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:22:56,303 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 290 transitions. [2020-09-25 14:22:56,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 14:22:56,316 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:22:56,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:22:56,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:22:56,317 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:22:56,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:22:56,317 INFO L82 PathProgramCache]: Analyzing trace with hash 445163065, now seen corresponding path program 1 times [2020-09-25 14:22:56,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:22:56,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093114978] [2020-09-25 14:22:56,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:22:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:56,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:56,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:56,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:57,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:01,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:01,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 14:23:01,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:23:01,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-09-25 14:23:01,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:01,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:01,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:23:01,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:23:01,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 14:23:01,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:01,817 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:23:01,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:23:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:01,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:02,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:02,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:23:02,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:02,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-25 14:23:02,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:02,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:02,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:02,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:02,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:23:02,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:02,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:23:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:02,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:02,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:02,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:23:02,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:02,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:23:02,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:02,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:02,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:02,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:02,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:23:02,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:02,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:23:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:02,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:02,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:02,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:23:02,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:02,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:23:02,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:02,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:02,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:02,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:02,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:23:02,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:02,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:23:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:02,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:02,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:02,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:23:02,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:02,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:23:02,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:02,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:23:02,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:02,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:23:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:02,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:02,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:02,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:23:02,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:02,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:23:02,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:02,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:02,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:02,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:02,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:23:02,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:02,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:23:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:02,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:02,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:02,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:02,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:23:02,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:23:02,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 14:23:02,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:02,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:02,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:23:02,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:23:02,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:23:02,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:02,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:23:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:02,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:02,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:02,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:23:02,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:02,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:23:02,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:02,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:02,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:23:02,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:23:02,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:23:02,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:02,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:23:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:02,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:02,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:02,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:23:02,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:02,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:23:02,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:02,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:02,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:02,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:02,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:23:02,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:23:02,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 14:23:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:02,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:02,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:02,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:23:02,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:02,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:23:02,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:02,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:02,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:02,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:23:02,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:02,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:02,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 14:23:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:02,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:02,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:02,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:23:02,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:02,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:23:02,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:02,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:02,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:02,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:23:02,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:02,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:02,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:23:02,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093114978] [2020-09-25 14:23:02,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:23:02,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:23:02,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425197264] [2020-09-25 14:23:02,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:23:02,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:23:02,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:23:02,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:23:02,337 INFO L87 Difference]: Start difference. First operand 268 states and 290 transitions. Second operand 6 states. [2020-09-25 14:23:02,852 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:23:04,515 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:23:05,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:23:05,950 INFO L93 Difference]: Finished difference Result 653 states and 780 transitions. [2020-09-25 14:23:05,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 14:23:05,952 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-25 14:23:05,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:23:05,958 INFO L225 Difference]: With dead ends: 653 [2020-09-25 14:23:05,958 INFO L226 Difference]: Without dead ends: 495 [2020-09-25 14:23:05,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:23:05,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-09-25 14:23:06,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 410. [2020-09-25 14:23:06,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-09-25 14:23:06,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 453 transitions. [2020-09-25 14:23:06,042 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 453 transitions. Word has length 156 [2020-09-25 14:23:06,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:23:06,043 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 453 transitions. [2020-09-25 14:23:06,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:23:06,044 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 453 transitions. [2020-09-25 14:23:06,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 14:23:06,046 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:23:06,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:23:06,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:23:06,047 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:23:06,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:23:06,047 INFO L82 PathProgramCache]: Analyzing trace with hash 2040956537, now seen corresponding path program 1 times [2020-09-25 14:23:06,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:23:06,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [89747891] [2020-09-25 14:23:06,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:23:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:06,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:06,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:07,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:07,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:07,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:07,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:11,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:11,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-25 14:23:11,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:23:11,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 14:23:11,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:11,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:11,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:23:11,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-25 14:23:11,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 14:23:11,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:11,617 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:23:11,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:23:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:11,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:11,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:11,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:23:11,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:11,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 14:23:11,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:11,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:11,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:11,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:11,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:11,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:23:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:11,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:11,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:11,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:23:11,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:11,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:23:11,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:11,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:11,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:11,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:11,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:11,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:23:11,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:23:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:11,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:11,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:11,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:23:11,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:11,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:23:11,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:11,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:11,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:11,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:11,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:11,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:11,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:23:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:11,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:11,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:11,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:23:11,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:11,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:23:11,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:11,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:11,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:11,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:23:11,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:23:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:11,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:11,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:11,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:23:11,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:11,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:23:11,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:11,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:11,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:11,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:11,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:11,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:11,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:23:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:11,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:11,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:11,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:11,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 14:23:11,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:23:11,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 14:23:11,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:11,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:11,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:11,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:11,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:23:11,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:11,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:23:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:11,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:11,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:11,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 14:23:11,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:11,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 14:23:11,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:11,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:11,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:12,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:12,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 14:23:12,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:12,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:23:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:12,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:12,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:12,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:23:12,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:12,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 14:23:12,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:12,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:12,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:12,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:12,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 14:23:12,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:12,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:23:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:12,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:12,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:12,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:23:12,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:12,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:23:12,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:12,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:12,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:12,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:12,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:12,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:12,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 14:23:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:12,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:12,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:12,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:23:12,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:12,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:23:12,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:12,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:12,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:12,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:12,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:23:12,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:12,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 14:23:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:12,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:12,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:12,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:23:12,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:12,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:23:12,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:12,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:12,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:12,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:12,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:23:12,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:12,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 14:23:12,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:12,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:12,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:12,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:23:12,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:12,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:23:12,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:12,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:12,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:23:12,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:12,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:23:12,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:12,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:23:12,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [89747891] [2020-09-25 14:23:12,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:23:12,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:23:12,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38236528] [2020-09-25 14:23:12,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:23:12,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:23:12,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:23:12,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:23:12,170 INFO L87 Difference]: Start difference. First operand 410 states and 453 transitions. Second operand 9 states. [2020-09-25 14:23:12,698 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:23:14,255 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:23:14,566 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:23:14,901 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:23:15,274 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:23:15,613 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:23:16,065 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:23:16,376 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:23:16,743 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:23:18,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:23:18,030 INFO L93 Difference]: Finished difference Result 488 states and 565 transitions. [2020-09-25 14:23:18,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 14:23:18,031 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 180 [2020-09-25 14:23:18,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:23:18,037 INFO L225 Difference]: With dead ends: 488 [2020-09-25 14:23:18,037 INFO L226 Difference]: Without dead ends: 485 [2020-09-25 14:23:18,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 14:23:18,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-09-25 14:23:18,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 410. [2020-09-25 14:23:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-09-25 14:23:18,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 452 transitions. [2020-09-25 14:23:18,104 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 452 transitions. Word has length 180 [2020-09-25 14:23:18,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:23:18,104 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 452 transitions. [2020-09-25 14:23:18,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:23:18,105 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 452 transitions. [2020-09-25 14:23:18,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 14:23:18,108 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:23:18,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:23:18,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:23:18,108 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:23:18,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:23:18,109 INFO L82 PathProgramCache]: Analyzing trace with hash -853198855, now seen corresponding path program 1 times [2020-09-25 14:23:18,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:23:18,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [873999628] [2020-09-25 14:23:18,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:23:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:18,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:18,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:19,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:23,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:23,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-25 14:23:23,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:23:23,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:23:23,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:23,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:23,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:23:23,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 14:23:23,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-25 14:23:23,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:23:23,555 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:23:23,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:23:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:23,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:23,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:23,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:23:23,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:23,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-25 14:23:23,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:23,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:23,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:23,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:23,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:23:23,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:23,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:23:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:23,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:23,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:23,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:23:23,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:23,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:23:23,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:23,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:23,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:23,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:23,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:23:23,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:23,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:23:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:23,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:23,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:23,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:23:23,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:23,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:23:23,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:23,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:23,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:23:23,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:23,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:23:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:23,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:23,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:23,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:23:23,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:23,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:23:23,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:23,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:23,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:23,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:23,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:23:23,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:23,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:23:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:23,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:23,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:23,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:23:23,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:23,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:23:23,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:23,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:23,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:23,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:23,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:23:23,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:23,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:23:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:24,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:24,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:24,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:24,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 14:23:24,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:23:24,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-09-25 14:23:24,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:24,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:23:24,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:24,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:23:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:24,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:24,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:24,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:24,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 14:23:24,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:23:24,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 14:23:24,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:24,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:24,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:23:24,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 14:23:24,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:23:24,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:24,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:23:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:24,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:24,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:24,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:23:24,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:24,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 14:23:24,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:24,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:24,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:23:24,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:24,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 14:23:24,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:24,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:23:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:24,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:24,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:24,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:23:24,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:24,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:23:24,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:24,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:24,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:24,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:24,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:24,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:24,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 14:23:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:24,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:24,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:24,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 14:23:24,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:24,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 14:23:24,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:24,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:24,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:24,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 14:23:24,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:24,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:24,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:23:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:24,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:24,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:24,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:23:24,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:24,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:23:24,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:24,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:24,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:24,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:24,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:24,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:24,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:23:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:24,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:24,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:24,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:23:24,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:24,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:23:24,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:24,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:24,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:24,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:24,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:24,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:24,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 14:23:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:24,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:24,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:24,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:23:24,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:24,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:23:24,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:24,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:24,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:24,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:24,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:24,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:24,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 14:23:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:24,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:24,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:24,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:23:24,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:24,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:23:24,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:24,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:23:24,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:24,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:23:24,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:24,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-25 14:23:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:24,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:24,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:24,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:23:24,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:24,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:23:24,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:24,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:24,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:24,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:23:24,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:24,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:23:24,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:23:24,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [873999628] [2020-09-25 14:23:24,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:23:24,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-25 14:23:24,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487518841] [2020-09-25 14:23:24,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 14:23:24,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:23:24,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 14:23:24,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-09-25 14:23:24,636 INFO L87 Difference]: Start difference. First operand 410 states and 452 transitions. Second operand 15 states. [2020-09-25 14:23:25,180 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:23:26,489 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:23:26,816 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:23:27,147 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:23:27,497 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:23:27,857 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:23:28,181 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:23:28,773 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:23:29,094 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:23:29,429 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:23:29,780 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:23:30,096 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:23:31,145 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:23:31,454 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:23:31,786 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:23:32,493 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:23:32,812 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:23:33,132 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:23:33,449 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:23:33,772 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189