/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:17:38,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:17:38,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:17:38,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:17:38,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:17:38,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:17:38,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:17:38,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:17:38,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:17:38,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:17:38,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:17:38,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:17:38,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:17:38,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:17:38,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:17:38,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:17:38,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:17:38,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:17:38,692 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:17:38,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:17:38,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:17:38,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:17:38,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:17:38,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:17:38,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:17:38,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:17:38,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:17:38,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:17:38,709 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:17:38,710 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:17:38,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:17:38,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:17:38,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:17:38,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:17:38,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:17:38,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:17:38,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:17:38,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:17:38,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:17:38,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:17:38,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:17:38,719 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:17:38,745 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:17:38,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:17:38,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:17:38,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:17:38,747 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:17:38,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:17:38,748 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:17:38,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:17:38,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:17:38,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:17:38,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:17:38,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:17:38,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:17:38,749 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:17:38,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:17:38,750 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:17:38,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:17:38,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:17:38,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:17:38,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:17:38,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:17:38,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:17:38,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:17:38,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:17:38,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:17:38,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:17:38,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:17:38,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:17:38,752 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:17:38,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:17:39,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:17:39,311 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:17:39,316 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:17:39,318 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:17:39,320 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:17:39,321 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c [2020-09-25 14:17:39,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbf011f46/8822d86551c44e7eb064b02ef18a3f79/FLAGabded0eab [2020-09-25 14:17:39,992 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:17:39,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c [2020-09-25 14:17:40,010 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbf011f46/8822d86551c44e7eb064b02ef18a3f79/FLAGabded0eab [2020-09-25 14:17:40,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbf011f46/8822d86551c44e7eb064b02ef18a3f79 [2020-09-25 14:17:40,256 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:17:40,261 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:17:40,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:17:40,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:17:40,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:17:40,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:17:40" (1/1) ... [2020-09-25 14:17:40,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7845d484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:40, skipping insertion in model container [2020-09-25 14:17:40,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:17:40" (1/1) ... [2020-09-25 14:17:40,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:17:40,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:17:40,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:17:40,844 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:17:41,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:17:41,067 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:17:41,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:41 WrapperNode [2020-09-25 14:17:41,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:17:41,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:17:41,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:17:41,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:17:41,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:41" (1/1) ... [2020-09-25 14:17:41,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:41" (1/1) ... [2020-09-25 14:17:41,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:41" (1/1) ... [2020-09-25 14:17:41,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:41" (1/1) ... [2020-09-25 14:17:41,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:41" (1/1) ... [2020-09-25 14:17:41,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:41" (1/1) ... [2020-09-25 14:17:41,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:41" (1/1) ... [2020-09-25 14:17:41,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:17:41,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:17:41,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:17:41,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:17:41,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:17:41,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:17:41,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:17:41,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:17:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:17:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:17:41,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:17:41,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:17:41,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:17:41,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:17:41,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:17:41,306 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:17:41,306 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:17:41,306 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:17:41,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:17:41,306 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:17:41,307 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:17:41,307 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 14:17:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 14:17:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 14:17:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 14:17:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:17:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:17:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 14:17:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 14:17:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:17:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:17:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:17:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:17:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:17:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:17:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 14:17:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 14:17:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:17:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 14:17:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:17:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:17:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:17:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:17:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:17:41,315 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:17:41,315 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:17:41,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:17:41,315 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:17:41,315 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:17:41,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:17:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:17:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:17:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:17:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:17:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:17:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:17:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:17:41,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:17:41,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:17:41,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:17:41,319 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:17:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:17:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:17:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:17:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:17:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:17:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:17:41,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:17:41,321 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:17:41,321 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:17:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:17:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:17:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:17:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:17:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:17:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:17:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 14:17:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 14:17:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:17:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 14:17:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 14:17:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:17:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:17:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:17:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:17:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:17:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 14:17:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:17:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:17:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 14:17:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 14:17:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 14:17:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 14:17:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:17:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:17:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:17:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:17:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:17:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:17:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:17:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:17:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:17:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:17:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:17:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:17:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:17:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:17:42,564 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:17:42,564 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:17:42,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:17:42 BoogieIcfgContainer [2020-09-25 14:17:42,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:17:42,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:17:42,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:17:42,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:17:42,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:17:40" (1/3) ... [2020-09-25 14:17:42,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21be7ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:17:42, skipping insertion in model container [2020-09-25 14:17:42,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:41" (2/3) ... [2020-09-25 14:17:42,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21be7ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:17:42, skipping insertion in model container [2020-09-25 14:17:42,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:17:42" (3/3) ... [2020-09-25 14:17:42,587 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product56.cil.c [2020-09-25 14:17:42,599 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:17:42,613 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:17:42,636 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:17:42,664 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:17:42,664 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:17:42,665 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:17:42,665 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:17:42,665 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:17:42,665 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:17:42,665 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:17:42,665 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:17:42,694 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states. [2020-09-25 14:17:42,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 14:17:42,715 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:17:42,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:17:42,717 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:17:42,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:17:42,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1985307326, now seen corresponding path program 1 times [2020-09-25 14:17:42,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:17:42,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987660576] [2020-09-25 14:17:42,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:17:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:43,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:43,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:44,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:45,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:46,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:47,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:48,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:48,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 14:17:48,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:17:48,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 14:17:48,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:48,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:48,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:17:48,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 14:17:48,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 14:17:48,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:17:48,629 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:17:48,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:17:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:48,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:48,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:48,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:17:48,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:48,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-25 14:17:48,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:48,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:48,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:48,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:48,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:17:48,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:49,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:17:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:49,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:49,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:49,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:49,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:49,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:17:49,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:49,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:49,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:49,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:49,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:49,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:49,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:17:49,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:49,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:49,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:49,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:49,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:49,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:17:49,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:49,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:49,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:49,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:49,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:49,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:49,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:17:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:49,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:49,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:49,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:49,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:49,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:17:49,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:49,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:49,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:49,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:49,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:17:49,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:49,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:17:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:49,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:49,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:49,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:49,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:49,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:17:49,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:49,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:49,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:49,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:49,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:49,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:49,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:17:49,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:49,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:49,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:49,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:17:49,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:49,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:17:49,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:49,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:49,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:49,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:49,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:17:49,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:49,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 14:17:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:49,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:49,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:49,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:49,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:49,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:17:49,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:49,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:17:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:17:49,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:17:49,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:49,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 14:17:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:49,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:49,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:49,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:49,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:49,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:17:49,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:49,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:49,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:17:49,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:17:49,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:17:49,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 14:17:49,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:17:49,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987660576] [2020-09-25 14:17:49,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:17:49,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:17:49,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501859425] [2020-09-25 14:17:49,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:17:49,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:17:49,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:17:49,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:17:49,191 INFO L87 Difference]: Start difference. First operand 351 states. Second operand 5 states. [2020-09-25 14:17:49,807 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:17:52,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:17:52,760 INFO L93 Difference]: Finished difference Result 779 states and 938 transitions. [2020-09-25 14:17:52,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:17:52,763 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 14:17:52,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:17:52,787 INFO L225 Difference]: With dead ends: 779 [2020-09-25 14:17:52,787 INFO L226 Difference]: Without dead ends: 552 [2020-09-25 14:17:52,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:17:52,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2020-09-25 14:17:52,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 475. [2020-09-25 14:17:52,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2020-09-25 14:17:52,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 536 transitions. [2020-09-25 14:17:52,967 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 536 transitions. Word has length 148 [2020-09-25 14:17:52,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:17:52,968 INFO L479 AbstractCegarLoop]: Abstraction has 475 states and 536 transitions. [2020-09-25 14:17:52,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:17:52,969 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 536 transitions. [2020-09-25 14:17:52,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 14:17:52,976 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:17:52,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:17:52,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:17:52,977 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:17:52,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:17:52,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1747225075, now seen corresponding path program 1 times [2020-09-25 14:17:52,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:17:52,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [344335381] [2020-09-25 14:17:52,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:17:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:53,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:53,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:53,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:53,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:56,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:57,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:57,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:57,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:58,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:58,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-25 14:17:58,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 14:17:58,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 14:17:58,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:58,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:58,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:17:58,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:17:58,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-25 14:17:58,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:58,391 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:17:58,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:17:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:58,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:58,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:58,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:17:58,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:58,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-25 14:17:58,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:58,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:58,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:58,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:58,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:17:58,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:58,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:17:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:58,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:58,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:58,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:58,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:58,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:17:58,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:58,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:58,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:58,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:58,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:58,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:58,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:17:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:58,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:58,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:58,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:58,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:58,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:17:58,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:58,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:58,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:58,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:58,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:58,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:58,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:17:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:58,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:58,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:58,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:58,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:58,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:17:58,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:58,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:58,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:58,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:58,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:17:58,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:17:58,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:17:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:58,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:58,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:58,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:58,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:58,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:17:58,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:58,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:58,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:58,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:58,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:58,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:58,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:17:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:58,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:58,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:58,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:17:58,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:58,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:17:58,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:58,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:58,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:17:58,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:17:58,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 14:17:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:58,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:58,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:58,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:17:58,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:58,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:17:58,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:58,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:58,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:58,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:58,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:17:58,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:58,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 14:17:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:58,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:58,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:58,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:58,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:58,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 14:17:58,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:17:58,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 14:17:58,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:58,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:58,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:58,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:58,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 14:17:58,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:58,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:17:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:58,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:58,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:58,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:58,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:17:58,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:17:58,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 14:17:58,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:58,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:58,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:17:58,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 14:17:58,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:17:58,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:58,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:17:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:58,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:58,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:58,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:17:58,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:58,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:17:58,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:58,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:58,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:17:58,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:17:58,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:17:58,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:59,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:17:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:59,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:59,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:59,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:59,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:59,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:17:59,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:59,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:59,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:59,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:59,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:59,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:59,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 14:17:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:59,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:59,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:59,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:59,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:59,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:17:59,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:59,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:59,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:17:59,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:59,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:17:59,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:59,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 14:17:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:59,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:59,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:59,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:59,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:59,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:17:59,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:59,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:59,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:17:59,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:17:59,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:17:59,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:59,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:17:59,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [344335381] [2020-09-25 14:17:59,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:17:59,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 14:17:59,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914976888] [2020-09-25 14:17:59,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 14:17:59,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:17:59,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 14:17:59,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-09-25 14:17:59,225 INFO L87 Difference]: Start difference. First operand 475 states and 536 transitions. Second operand 14 states. [2020-09-25 14:17:59,915 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:18:01,197 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:18:02,289 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-25 14:18:02,997 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-09-25 14:18:03,440 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:18:03,811 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:18:04,118 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:18:04,498 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 14:18:04,833 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:18:05,422 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:18:06,247 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:18:07,071 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 14:18:07,745 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-25 14:18:08,161 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:18:08,582 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:18:08,935 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:18:09,562 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:18:09,883 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 14:18:10,235 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 14:18:10,713 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:18:11,471 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 196 [2020-09-25 14:18:12,104 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 198 [2020-09-25 14:18:12,575 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:18:13,580 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 14:18:13,992 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-09-25 14:18:14,346 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 14:18:14,775 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 14:18:15,203 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 14:18:15,930 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:18:19,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:18:19,488 INFO L93 Difference]: Finished difference Result 2095 states and 2735 transitions. [2020-09-25 14:18:19,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-09-25 14:18:19,489 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 180 [2020-09-25 14:18:19,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:18:19,508 INFO L225 Difference]: With dead ends: 2095 [2020-09-25 14:18:19,508 INFO L226 Difference]: Without dead ends: 1643 [2020-09-25 14:18:19,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2402 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=1220, Invalid=5586, Unknown=0, NotChecked=0, Total=6806 [2020-09-25 14:18:19,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2020-09-25 14:18:19,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1266. [2020-09-25 14:18:19,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1266 states. [2020-09-25 14:18:19,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1433 transitions. [2020-09-25 14:18:19,783 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1433 transitions. Word has length 180 [2020-09-25 14:18:19,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:18:19,784 INFO L479 AbstractCegarLoop]: Abstraction has 1266 states and 1433 transitions. [2020-09-25 14:18:19,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 14:18:19,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1433 transitions. [2020-09-25 14:18:19,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 14:18:19,788 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:18:19,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:18:19,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:18:19,789 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:18:19,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:18:19,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1017465386, now seen corresponding path program 1 times [2020-09-25 14:18:19,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:18:19,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [944920453] [2020-09-25 14:18:19,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:18:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:19,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:20,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:20,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:21,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:24,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:24,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 14:18:24,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:18:24,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-25 14:18:24,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:24,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:24,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:18:24,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 14:18:24,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 14:18:24,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:25,191 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:18:25,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:18:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:25,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:25,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:25,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:18:25,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:25,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 14:18:25,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:25,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:25,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:25,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:25,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:25,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:25,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:18:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:25,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:25,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:25,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:25,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:25,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:18:25,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:25,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:25,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:25,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:25,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:25,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:25,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:18:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:25,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:25,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:25,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:25,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:25,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:18:25,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:25,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:25,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:25,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:25,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:25,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:25,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:18:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:25,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:25,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:25,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:25,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:25,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:18:25,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:25,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:25,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:25,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:25,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:25,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:25,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:18:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:25,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:25,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:25,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:25,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:25,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:25,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:25,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:25,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:25,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:25,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:25,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:25,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:18:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:25,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:25,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:25,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:18:25,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:25,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:18:25,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:25,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:25,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:25,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:25,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 14:18:25,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:25,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 14:18:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:25,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:25,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:25,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:18:25,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:25,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 14:18:25,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:25,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:25,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:25,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:25,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:18:25,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:25,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 14:18:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:25,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:25,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:25,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:18:25,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:25,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:25,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:25,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:25,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:25,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:25,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:18:25,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:25,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 14:18:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:25,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:25,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:25,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:25,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:25,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:25,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:25,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:25,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:25,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:25,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:25,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:25,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 14:18:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:25,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:25,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:25,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:25,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:25,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:25,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:25,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:25,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:25,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:25,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:25,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:25,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:18:25,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [944920453] [2020-09-25 14:18:25,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:18:25,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:18:25,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413444084] [2020-09-25 14:18:25,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:18:25,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:18:25,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:18:25,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:18:25,545 INFO L87 Difference]: Start difference. First operand 1266 states and 1433 transitions. Second operand 7 states. [2020-09-25 14:18:26,146 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:18:29,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:18:29,687 INFO L93 Difference]: Finished difference Result 2973 states and 3743 transitions. [2020-09-25 14:18:29,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 14:18:29,688 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-09-25 14:18:29,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:18:29,712 INFO L225 Difference]: With dead ends: 2973 [2020-09-25 14:18:29,713 INFO L226 Difference]: Without dead ends: 2970 [2020-09-25 14:18:29,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 14:18:29,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2020-09-25 14:18:30,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 1940. [2020-09-25 14:18:30,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1940 states. [2020-09-25 14:18:30,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1940 states to 1940 states and 2292 transitions. [2020-09-25 14:18:30,023 INFO L78 Accepts]: Start accepts. Automaton has 1940 states and 2292 transitions. Word has length 172 [2020-09-25 14:18:30,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:18:30,025 INFO L479 AbstractCegarLoop]: Abstraction has 1940 states and 2292 transitions. [2020-09-25 14:18:30,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:18:30,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1940 states and 2292 transitions. [2020-09-25 14:18:30,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-09-25 14:18:30,032 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:18:30,032 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:18:30,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:18:30,033 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:18:30,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:18:30,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1724115307, now seen corresponding path program 1 times [2020-09-25 14:18:30,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:18:30,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2098180272] [2020-09-25 14:18:30,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:18:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:30,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:30,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:30,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking...