/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:15:55,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:15:55,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:15:55,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:15:55,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:15:55,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:15:55,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:15:55,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:15:55,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:15:55,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:15:55,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:15:55,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:15:55,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:15:55,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:15:55,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:15:55,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:15:55,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:15:55,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:15:55,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:15:55,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:15:55,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:15:55,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:15:55,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:15:55,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:15:55,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:15:55,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:15:55,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:15:55,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:15:55,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:15:55,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:15:55,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:15:55,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:15:55,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:15:55,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:15:55,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:15:55,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:15:55,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:15:55,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:15:55,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:15:55,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:15:55,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:15:55,815 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:15:55,839 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:15:55,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:15:55,841 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:15:55,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:15:55,841 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:15:55,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:15:55,842 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:15:55,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:15:55,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:15:55,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:15:55,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:15:55,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:15:55,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:15:55,843 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:15:55,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:15:55,844 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:15:55,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:15:55,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:15:55,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:15:55,844 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:15:55,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:15:55,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:15:55,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:15:55,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:15:55,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:15:55,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:15:55,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:15:55,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:15:55,846 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:15:55,847 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:15:56,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:15:56,322 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:15:56,327 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:15:56,329 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:15:56,331 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:15:56,332 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2020-09-24 21:15:56,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/23b78c035/dc099e3a470549048bda7b1ff901ff76/FLAGdde44cc9d [2020-09-24 21:15:57,000 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:15:57,001 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2020-09-24 21:15:57,024 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/23b78c035/dc099e3a470549048bda7b1ff901ff76/FLAGdde44cc9d [2020-09-24 21:15:57,289 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/23b78c035/dc099e3a470549048bda7b1ff901ff76 [2020-09-24 21:15:57,304 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:15:57,311 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:15:57,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:15:57,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:15:57,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:15:57,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:15:57" (1/1) ... [2020-09-24 21:15:57,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:57, skipping insertion in model container [2020-09-24 21:15:57,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:15:57" (1/1) ... [2020-09-24 21:15:57,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:15:57,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:15:57,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:15:57,794 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:15:58,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:15:58,045 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:15:58,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:58 WrapperNode [2020-09-24 21:15:58,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:15:58,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:15:58,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:15:58,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:15:58,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:58" (1/1) ... [2020-09-24 21:15:58,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:58" (1/1) ... [2020-09-24 21:15:58,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:58" (1/1) ... [2020-09-24 21:15:58,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:58" (1/1) ... [2020-09-24 21:15:58,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:58" (1/1) ... [2020-09-24 21:15:58,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:58" (1/1) ... [2020-09-24 21:15:58,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:58" (1/1) ... [2020-09-24 21:15:58,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:15:58,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:15:58,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:15:58,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:15:58,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:15:58,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:15:58,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:15:58,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:15:58,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:15:58,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:15:58,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:15:58,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:15:58,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:15:58,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:15:58,265 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:15:58,265 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:15:58,265 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:15:58,266 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:15:58,266 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:15:58,266 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:15:58,267 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:15:58,267 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:15:58,267 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:15:58,267 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:15:58,268 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:15:58,268 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 21:15:58,268 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:15:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:15:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:15:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:15:58,270 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:15:58,270 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:15:58,270 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 21:15:58,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:15:58,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 21:15:58,270 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:15:58,270 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:15:58,271 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:15:58,271 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:15:58,271 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:15:58,271 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:15:58,271 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:15:58,271 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:15:58,272 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:15:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:15:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:15:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:15:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:15:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:15:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:15:58,273 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:15:58,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:15:58,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:15:58,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:15:58,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:15:58,274 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:15:58,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:15:58,274 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:15:58,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:15:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:15:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:15:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:15:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:15:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:15:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:15:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:15:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:15:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:15:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:15:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:15:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:15:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 21:15:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:15:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:15:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:15:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:15:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:15:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:15:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:15:58,280 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 21:15:58,280 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:15:58,280 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:15:58,280 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:15:58,280 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 21:15:58,280 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:15:58,280 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:15:58,281 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:15:58,281 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:15:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:15:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:15:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:15:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:15:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:15:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:15:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:15:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:15:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:15:59,392 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:15:59,392 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:15:59,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:15:59 BoogieIcfgContainer [2020-09-24 21:15:59,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:15:59,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:15:59,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:15:59,404 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:15:59,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:15:57" (1/3) ... [2020-09-24 21:15:59,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a2049c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:15:59, skipping insertion in model container [2020-09-24 21:15:59,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:58" (2/3) ... [2020-09-24 21:15:59,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a2049c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:15:59, skipping insertion in model container [2020-09-24 21:15:59,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:15:59" (3/3) ... [2020-09-24 21:15:59,408 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product42.cil.c [2020-09-24 21:15:59,419 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:15:59,430 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:15:59,452 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:15:59,482 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:15:59,482 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:15:59,482 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:15:59,482 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:15:59,482 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:15:59,482 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:15:59,482 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:15:59,482 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:15:59,510 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states. [2020-09-24 21:15:59,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 21:15:59,526 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:15:59,528 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] [2020-09-24 21:15:59,528 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:15:59,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:15:59,535 INFO L82 PathProgramCache]: Analyzing trace with hash -2111431698, now seen corresponding path program 1 times [2020-09-24 21:15:59,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:15:59,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [222125668] [2020-09-24 21:15:59,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:15:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:00,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:00,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:01,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:02,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:04,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:04,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 21:16:04,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:16:04,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-24 21:16:04,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:04,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:16:04,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:16:04,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 21:16:04,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 21:16:05,444 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:16:05,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:16:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:05,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:05,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:05,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:16:05,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:05,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-09-24 21:16:05,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:05,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:05,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:05,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:16:05,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:05,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:16:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:05,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:05,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:05,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:05,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:05,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:05,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:05,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:05,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:05,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:05,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:05,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:16:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:05,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:05,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:05,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:05,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:05,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:16:05,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:05,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:05,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:05,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:05,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:05,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:16:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:05,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:05,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:05,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:05,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:05,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:16:05,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:05,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:05,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:05,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:05,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:05,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:16:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:05,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:05,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:05,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:05,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:05,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:05,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:05,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:05,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:05,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:05,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:05,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:16:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:05,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:05,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:05,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:05,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:05,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:16:05,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:05,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:05,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:05,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:05,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:05,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 21:16:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:05,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:05,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:05,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:05,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:05,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:05,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:05,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:05,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:05,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:05,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:06,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:16:06,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [222125668] [2020-09-24 21:16:06,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:16:06,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:16:06,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647480362] [2020-09-24 21:16:06,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:16:06,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:16:06,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:16:06,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:16:06,070 INFO L87 Difference]: Start difference. First operand 299 states. Second operand 8 states. [2020-09-24 21:16:06,769 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:16:07,776 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:08,071 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:08,381 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:08,709 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:09,011 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:09,744 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:16:10,078 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:10,548 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:16:11,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:16:11,802 INFO L93 Difference]: Finished difference Result 622 states and 755 transitions. [2020-09-24 21:16:11,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 21:16:11,806 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 21:16:11,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:16:11,850 INFO L225 Difference]: With dead ends: 622 [2020-09-24 21:16:11,850 INFO L226 Difference]: Without dead ends: 417 [2020-09-24 21:16:11,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:16:11,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-09-24 21:16:11,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 361. [2020-09-24 21:16:11,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-09-24 21:16:12,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 397 transitions. [2020-09-24 21:16:12,010 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 397 transitions. Word has length 142 [2020-09-24 21:16:12,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:16:12,012 INFO L479 AbstractCegarLoop]: Abstraction has 361 states and 397 transitions. [2020-09-24 21:16:12,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:16:12,012 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 397 transitions. [2020-09-24 21:16:12,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 21:16:12,028 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:16:12,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:16:12,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:16:12,029 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:16:12,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:16:12,031 INFO L82 PathProgramCache]: Analyzing trace with hash -240911831, now seen corresponding path program 1 times [2020-09-24 21:16:12,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:16:12,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [659558004] [2020-09-24 21:16:12,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:16:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:12,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:12,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:12,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:16,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:16,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 21:16:16,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:16:16,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4396 [2020-09-24 21:16:16,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:16,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 21:16:16,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 21:16:16,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 21:16:16,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:16,888 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:16:16,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:16:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:16,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:17,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:17,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:16:17,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:17,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-24 21:16:17,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:17,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:17,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:17,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 21:16:17,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:17,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:16:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:17,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:17,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:17,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:17,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:17,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:17,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:17,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:17,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:17,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:17,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:17,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:16:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:17,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:17,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:17,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:17,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:17,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:17,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:17,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:17,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:17,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:17,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:17,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:16:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:17,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:17,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:17,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:17,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:17,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:16:17,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:17,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:17,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:17,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:17,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:17,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:16:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:17,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:17,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:17,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:17,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:17,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:17,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:17,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:17,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:17,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:17,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:17,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:16:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:17,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:17,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:17,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:16:17,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:17,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:16:17,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:17,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:17,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:17,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:16:17,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:17,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:16:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:17,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:17,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:17,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:16:17,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:17,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:16:17,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:17,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:17,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:17,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:16:17,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:17,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 21:16:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:17,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:17,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:17,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:17,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:17,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:17,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:17,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:17,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:17,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:17,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:17,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 21:16:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:17,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:17,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:17,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:17,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:17,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:16:17,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:17,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:17,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:17,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:17,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:17,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:16:17,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [659558004] [2020-09-24 21:16:17,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:16:17,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:16:17,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244733288] [2020-09-24 21:16:17,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:16:17,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:16:17,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:16:17,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:16:17,445 INFO L87 Difference]: Start difference. First operand 361 states and 397 transitions. Second operand 10 states. [2020-09-24 21:16:17,988 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:16:19,285 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:16:19,657 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:16:20,060 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:20,430 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:16:20,765 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:22,341 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:16:22,679 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:23,043 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:23,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:16:23,618 INFO L93 Difference]: Finished difference Result 1002 states and 1254 transitions. [2020-09-24 21:16:23,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 21:16:23,619 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-24 21:16:23,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:16:23,630 INFO L225 Difference]: With dead ends: 1002 [2020-09-24 21:16:23,630 INFO L226 Difference]: Without dead ends: 751 [2020-09-24 21:16:23,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 21:16:23,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2020-09-24 21:16:23,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 527. [2020-09-24 21:16:23,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2020-09-24 21:16:23,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 607 transitions. [2020-09-24 21:16:23,744 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 607 transitions. Word has length 161 [2020-09-24 21:16:23,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:16:23,745 INFO L479 AbstractCegarLoop]: Abstraction has 527 states and 607 transitions. [2020-09-24 21:16:23,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:16:23,745 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 607 transitions. [2020-09-24 21:16:23,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-09-24 21:16:23,750 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:16:23,750 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:16:23,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:16:23,751 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:16:23,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:16:23,751 INFO L82 PathProgramCache]: Analyzing trace with hash 984486308, now seen corresponding path program 1 times [2020-09-24 21:16:23,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:16:23,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385164662] [2020-09-24 21:16:23,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:16:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:23,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:23,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:24,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:24,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:24,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:24,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:28,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-09-24 21:16:28,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:16:28,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-24 21:16:28,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:28,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:28,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 21:16:28,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 21:16:28,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:29,145 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:16:29,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:16:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:29,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:29,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:16:29,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:29,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 21:16:29,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:29,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:29,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:29,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:29,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:29,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:16:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:29,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:29,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:29,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:29,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:16:29,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:29,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:29,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:29,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:29,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:29,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:16:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:29,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:29,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:29,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:29,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:16:29,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:29,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:29,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:29,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:29,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:29,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:16:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:29,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:29,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:29,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:29,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:29,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:29,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:29,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:29,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:29,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:29,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:16:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:29,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:29,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:29,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:29,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:16:29,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:29,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:29,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:29,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:29,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:29,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:16:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:29,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:29,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:16:29,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:29,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:16:29,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:29,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:16:29,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:29,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:16:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:29,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:29,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:16:29,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:29,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:29,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:29,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:29,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:29,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:16:29,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:29,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 21:16:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:29,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:29,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:16:29,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:29,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:16:29,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:29,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:29,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:29,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 21:16:29,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:29,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:29,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:29,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:16:29,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:29,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:29,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:29,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:29,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:29,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:29,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:29,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:29,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:29,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:29,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:29,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:29,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:29,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:29,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:29,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:29,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:29,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-24 21:16:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:29,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:29,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:16:29,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:16:29,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 21:16:29,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:29,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:29,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:16:29,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:16:29,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:29,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:29,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:29,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:16:29,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:29,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 21:16:29,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:29,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:29,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:16:29,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:16:29,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:29,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:16:29,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:29,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:29,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:16:29,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:29,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:16:29,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:29,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:16:29,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:29,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:29,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:29,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:16:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:29,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:29,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:16:29,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:29,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:16:29,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:29,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:29,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 21:16:29,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:29,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:29,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:16:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:29,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:29,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:16:29,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:29,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:29,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:29,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:29,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:29,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:29,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:29,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:16:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:29,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:29,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:29,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:29,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:29,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:29,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:29,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:29,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:29,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:29,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:16:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:29,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:29,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:16:29,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:29,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:29,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:29,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:29,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:29,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:29,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:29,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-24 21:16:29,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:29,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:29,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:29,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:29,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:29,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:29,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:29,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:29,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:29,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:29,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-09-24 21:16:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:29,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:29,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:29,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:29,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:29,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:29,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:29,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:29,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:29,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:29,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:29,818 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-24 21:16:29,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385164662] [2020-09-24 21:16:29,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:16:29,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 21:16:29,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712838512] [2020-09-24 21:16:29,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 21:16:29,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:16:29,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 21:16:29,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:16:29,822 INFO L87 Difference]: Start difference. First operand 527 states and 607 transitions. Second operand 12 states. [2020-09-24 21:16:30,663 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:16:31,624 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:31,948 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:16:32,278 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:16:32,621 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:16:32,925 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:16:34,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:16:34,952 INFO L93 Difference]: Finished difference Result 1400 states and 1844 transitions. [2020-09-24 21:16:34,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-24 21:16:34,952 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 241 [2020-09-24 21:16:34,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:16:34,965 INFO L225 Difference]: With dead ends: 1400 [2020-09-24 21:16:34,966 INFO L226 Difference]: Without dead ends: 983 [2020-09-24 21:16:34,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=247, Invalid=875, Unknown=0, NotChecked=0, Total=1122 [2020-09-24 21:16:34,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2020-09-24 21:16:35,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 519. [2020-09-24 21:16:35,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 519 states. [2020-09-24 21:16:35,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 585 transitions. [2020-09-24 21:16:35,077 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 585 transitions. Word has length 241 [2020-09-24 21:16:35,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:16:35,079 INFO L479 AbstractCegarLoop]: Abstraction has 519 states and 585 transitions. [2020-09-24 21:16:35,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 21:16:35,079 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 585 transitions. [2020-09-24 21:16:35,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-24 21:16:35,083 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:16:35,083 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:16:35,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:16:35,083 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:16:35,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:16:35,084 INFO L82 PathProgramCache]: Analyzing trace with hash 280021704, now seen corresponding path program 1 times [2020-09-24 21:16:35,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:16:35,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794844568] [2020-09-24 21:16:35,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:16:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:35,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:35,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:39,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:40,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:40,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-09-24 21:16:40,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:16:40,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-24 21:16:40,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:40,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:16:40,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-24 21:16:40,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:16:40,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:40,482 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:16:40,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:16:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:40,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:40,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:40,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:16:40,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:40,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 21:16:40,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:40,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:40,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:40,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:40,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:40,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:16:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:40,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:40,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:40,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:40,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:40,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:16:40,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:40,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:40,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:40,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:40,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:40,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:16:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:40,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:40,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:40,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:40,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:40,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:16:40,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:40,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:40,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:40,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:40,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:40,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:16:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:40,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:40,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:40,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:40,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:40,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:40,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:40,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:40,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:40,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:40,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:40,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:16:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:40,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:40,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:40,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:40,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:40,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:16:40,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:40,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:40,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:40,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:40,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:40,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:16:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:40,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:40,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:40,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:16:40,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:40,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:40,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:40,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:40,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:40,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:16:40,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:40,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:16:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:40,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:40,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:40,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:16:40,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:40,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:40,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:40,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:40,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:40,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:16:40,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:40,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 21:16:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:40,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:40,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:41,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:41,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:16:41,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:16:41,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-09-24 21:16:41,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:41,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:16:41,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 21:16:41,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:16:41,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:41,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:41,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:41,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:41,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:41,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:16:41,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:41,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 21:16:41,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:41,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:41,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:41,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:16:41,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:41,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:16:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:41,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:41,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:41,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:16:41,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:41,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:41,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:41,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:41,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:41,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:41,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:41,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:16:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:41,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:41,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:41,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:16:41,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:41,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:16:41,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:41,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:41,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 21:16:41,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:41,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:41,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:16:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:41,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:41,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:41,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:16:41,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:41,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:41,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:41,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:41,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:41,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:41,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:41,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:16:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:41,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:41,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:41,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:41,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:41,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:16:41,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:41,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:41,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:41,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:41,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:41,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:16:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:41,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:41,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:41,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:16:41,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:41,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:41,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:41,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:41,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:41,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:41,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:41,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 21:16:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:41,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:41,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:41,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:41,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:41,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:41,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:41,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:41,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:41,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:41,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:41,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 21:16:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:41,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:41,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:41,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:41,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:41,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:41,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:41,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:41,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:41,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:41,366 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:16:41,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794844568] [2020-09-24 21:16:41,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:16:41,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 21:16:41,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205588178] [2020-09-24 21:16:41,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 21:16:41,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:16:41,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 21:16:41,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:16:41,369 INFO L87 Difference]: Start difference. First operand 519 states and 585 transitions. Second operand 12 states. [2020-09-24 21:16:42,473 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:16:43,533 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:43,888 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:16:44,241 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:16:44,618 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:16:44,927 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:45,276 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:16:45,568 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:16:45,899 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 21:16:46,202 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187