/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:26:15,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:26:15,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:26:15,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:26:15,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:26:15,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:26:15,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:26:15,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:26:15,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:26:15,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:26:15,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:26:15,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:26:15,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:26:15,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:26:15,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:26:15,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:26:15,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:26:15,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:26:15,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:26:15,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:26:15,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:26:15,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:26:15,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:26:15,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:26:15,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:26:15,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:26:15,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:26:15,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:26:15,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:26:15,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:26:15,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:26:15,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:26:15,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:26:15,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:26:15,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:26:15,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:26:15,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:26:15,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:26:15,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:26:15,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:26:15,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:26:15,523 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 07:26:15,551 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:26:15,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:26:15,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:26:15,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:26:15,553 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:26:15,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:26:15,554 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:26:15,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:26:15,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:26:15,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:26:15,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:26:15,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:26:15,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:26:15,555 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:26:15,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:26:15,556 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:26:15,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:26:15,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:26:15,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:26:15,556 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:26:15,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:26:15,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:26:15,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:26:15,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:26:15,557 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:26:15,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:26:15,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:26:15,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:26:15,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:26:15,558 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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:26:16,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:26:16,082 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:26:16,090 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:26:16,093 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:26:16,094 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:26:16,096 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-25 07:26:16,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e23a2207/3b435b9c27894065a14dd69bffe865a4/FLAG58089e01d [2020-09-25 07:26:16,826 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:26:16,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-25 07:26:16,842 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e23a2207/3b435b9c27894065a14dd69bffe865a4/FLAG58089e01d [2020-09-25 07:26:17,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e23a2207/3b435b9c27894065a14dd69bffe865a4 [2020-09-25 07:26:17,124 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:26:17,133 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:26:17,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:26:17,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:26:17,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:26:17,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:26:17" (1/1) ... [2020-09-25 07:26:17,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cfafcce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17, skipping insertion in model container [2020-09-25 07:26:17,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:26:17" (1/1) ... [2020-09-25 07:26:17,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:26:17,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:26:17,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:26:17,829 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:26:17,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:26:17,973 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:26:17,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17 WrapperNode [2020-09-25 07:26:17,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:26:17,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:26:17,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:26:17,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:26:17,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17" (1/1) ... [2020-09-25 07:26:17,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17" (1/1) ... [2020-09-25 07:26:18,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17" (1/1) ... [2020-09-25 07:26:18,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17" (1/1) ... [2020-09-25 07:26:18,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17" (1/1) ... [2020-09-25 07:26:18,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17" (1/1) ... [2020-09-25 07:26:18,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17" (1/1) ... [2020-09-25 07:26:18,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:26:18,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:26:18,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:26:18,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:26:18,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17" (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 07:26:18,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:26:18,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:26:18,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:26:18,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:26:18,159 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:26:18,159 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:26:18,159 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:26:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:26:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:26:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:26:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:26:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:26:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:26:18,161 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:26:18,161 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 07:26:18,161 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:26:18,161 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:26:18,161 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:26:18,162 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:26:18,162 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:26:18,162 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:26:18,162 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:26:18,162 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:26:18,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:26:18,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:26:18,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:26:18,163 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:26:18,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:26:18,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:26:18,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:26:18,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:26:18,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:26:18,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:26:18,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 07:26:18,165 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:26:18,165 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:26:18,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:26:18,165 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:26:18,165 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:26:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:26:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:26:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:26:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:26:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:26:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:26:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:26:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:26:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:26:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:26:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:26:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:26:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:26:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:26:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 07:26:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 07:26:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:26:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:26:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:26:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:26:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:26:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:26:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:26:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:26:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:26:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:26:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:26:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:26:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:26:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:26:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:26:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:26:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:26:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:26:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:26:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:26:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:26:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:26:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:26:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:26:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:26:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:26:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:26:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:26:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:26:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:26:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:26:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:26:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:26:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:26:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:26:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:26:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:26:19,408 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:26:19,408 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:26:19,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:26:19 BoogieIcfgContainer [2020-09-25 07:26:19,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:26:19,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:26:19,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:26:19,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:26:19,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:26:17" (1/3) ... [2020-09-25 07:26:19,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d2fada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:26:19, skipping insertion in model container [2020-09-25 07:26:19,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17" (2/3) ... [2020-09-25 07:26:19,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d2fada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:26:19, skipping insertion in model container [2020-09-25 07:26:19,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:26:19" (3/3) ... [2020-09-25 07:26:19,431 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2020-09-25 07:26:19,443 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:26:19,456 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:26:19,476 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:26:19,505 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:26:19,506 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:26:19,506 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:26:19,506 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:26:19,506 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:26:19,506 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:26:19,506 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:26:19,506 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:26:19,537 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-09-25 07:26:19,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 07:26:19,556 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:19,557 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:26:19,558 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:19,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:19,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1033241294, now seen corresponding path program 1 times [2020-09-25 07:26:19,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:19,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [831202064] [2020-09-25 07:26:19,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:20,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:20,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:21,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:22,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:24,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:25,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:25,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 07:26:25,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:26:25,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5098 [2020-09-25 07:26:25,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:25,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:25,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:25,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:26:25,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:25,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 07:26:25,608 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:26:25,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:26:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:25,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:25,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:25,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:26:25,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:25,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-25 07:26:25,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:25,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:25,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:25,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:25,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:25,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:25,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:26:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:25,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:25,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:25,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:25,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:25,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:26:25,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:25,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:25,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:25,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:25,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:25,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:26:25,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:26:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:25,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:25,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:25,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:25,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:25,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:26:25,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:25,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:25,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:25,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:25,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:25,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:26:25,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:26:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:25,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:25,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:25,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:25,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:25,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 07:26:25,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:25,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:25,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:25,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:25,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:25,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:26:25,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:26:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:25,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:25,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:25,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:25,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:25,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:25,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:25,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:25,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:25,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:25,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:25,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:25,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:26:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:25,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:25,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:25,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:25,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:25,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:26:25,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:25,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:25,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:25,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:25,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:25,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:25,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:26:26,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:26,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:26,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:26,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:26,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:26,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:26,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:26,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:26,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:26,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:26,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:26,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:26,063 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 07:26:26,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [831202064] [2020-09-25 07:26:26,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:26:26,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:26:26,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014349654] [2020-09-25 07:26:26,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:26:26,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:26:26,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:26:26,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:26:26,112 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 3 states. [2020-09-25 07:26:27,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:26:27,864 INFO L93 Difference]: Finished difference Result 448 states and 534 transitions. [2020-09-25 07:26:27,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:26:27,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 07:26:27,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:26:27,889 INFO L225 Difference]: With dead ends: 448 [2020-09-25 07:26:27,889 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 07:26:27,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:26:27,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 07:26:27,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 240. [2020-09-25 07:26:28,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 07:26:28,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions. [2020-09-25 07:26:28,013 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 142 [2020-09-25 07:26:28,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:26:28,014 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 259 transitions. [2020-09-25 07:26:28,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:26:28,015 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions. [2020-09-25 07:26:28,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 07:26:28,030 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:28,030 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] [2020-09-25 07:26:28,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:26:28,033 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:28,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:28,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1951375081, now seen corresponding path program 1 times [2020-09-25 07:26:28,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:28,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521258303] [2020-09-25 07:26:28,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:28,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:28,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:29,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:30,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:31,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:33,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:33,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 07:26:33,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:26:33,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:26:33,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:33,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:33,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:33,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:26:33,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:26:33,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:33,481 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:26:33,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:26:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:33,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:33,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:33,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:26:33,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:33,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 07:26:33,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:33,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:33,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:33,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:33,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:33,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:26:33,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:26:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:33,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:33,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:33,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:33,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:33,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:33,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:33,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:33,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:33,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:33,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:33,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:33,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:26:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:33,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:33,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:33,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:33,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:33,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:33,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:33,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:33,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:33,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:33,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:26:33,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:33,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:33,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:33,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:33,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:33,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:26:33,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:33,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:33,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:33,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:33,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:33,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:26:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:33,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:33,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:33,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:33,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:33,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:33,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:33,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:33,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:33,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:33,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:33,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:33,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:26:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:33,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:33,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:33,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:33,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:33,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:33,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:33,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:33,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:33,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:33,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:33,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:33,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:26:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:33,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:33,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:33,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:33,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:33,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:33,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:33,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:33,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:33,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:33,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:33,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:26:33,746 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 07:26:33,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521258303] [2020-09-25 07:26:33,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:26:33,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:26:33,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562650469] [2020-09-25 07:26:33,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:26:33,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:26:33,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:26:33,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:26:33,752 INFO L87 Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 4 states. [2020-09-25 07:26:34,470 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:26:35,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:26:35,296 INFO L93 Difference]: Finished difference Result 352 states and 395 transitions. [2020-09-25 07:26:35,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:26:35,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 07:26:35,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:26:35,301 INFO L225 Difference]: With dead ends: 352 [2020-09-25 07:26:35,301 INFO L226 Difference]: Without dead ends: 265 [2020-09-25 07:26:35,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:26:35,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-25 07:26:35,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 230. [2020-09-25 07:26:35,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 07:26:35,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 246 transitions. [2020-09-25 07:26:35,347 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 246 transitions. Word has length 143 [2020-09-25 07:26:35,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:26:35,348 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 246 transitions. [2020-09-25 07:26:35,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:26:35,348 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 246 transitions. [2020-09-25 07:26:35,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 07:26:35,351 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:35,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:26:35,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:26:35,352 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:35,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:35,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1408786884, now seen corresponding path program 1 times [2020-09-25 07:26:35,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:35,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [540166344] [2020-09-25 07:26:35,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:35,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:35,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:36,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:36,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:40,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:40,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 07:26:40,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:26:40,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 07:26:40,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:40,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:40,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:40,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:26:40,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:26:40,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:40,698 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:26:40,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:26:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:40,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:40,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:40,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:26:40,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:40,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 07:26:40,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:40,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:40,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:40,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:40,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:40,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:40,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:26:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:40,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:40,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:40,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:40,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:40,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:40,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:40,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:40,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:40,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:40,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:40,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:40,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:26:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:40,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:40,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:40,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:40,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:40,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:40,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:40,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:40,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:40,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:40,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:40,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:40,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:26:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:40,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:40,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:40,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:40,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:40,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:26:40,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:40,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:40,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:40,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:40,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:40,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:40,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:26:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:40,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:40,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:40,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:40,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:40,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:40,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:40,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:40,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:40,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:40,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:40,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:40,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:26:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:40,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:40,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:40,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:26:40,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:40,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:26:40,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:40,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:40,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:40,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:40,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:26:40,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:40,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 07:26:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:40,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:40,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:40,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:40,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:40,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:40,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:40,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:40,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:40,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:40,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:40,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:40,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:26:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:40,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:40,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:40,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:40,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:40,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:26:40,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:40,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:40,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:40,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:40,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:40,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:26:41,001 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 07:26:41,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [540166344] [2020-09-25 07:26:41,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:26:41,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:26:41,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853794421] [2020-09-25 07:26:41,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:26:41,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:26:41,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:26:41,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:26:41,011 INFO L87 Difference]: Start difference. First operand 230 states and 246 transitions. Second operand 5 states. [2020-09-25 07:26:41,512 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:26:43,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:26:43,138 INFO L93 Difference]: Finished difference Result 536 states and 619 transitions. [2020-09-25 07:26:43,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:26:43,139 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 07:26:43,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:26:43,145 INFO L225 Difference]: With dead ends: 536 [2020-09-25 07:26:43,145 INFO L226 Difference]: Without dead ends: 416 [2020-09-25 07:26:43,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:26:43,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-25 07:26:43,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 334. [2020-09-25 07:26:43,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-09-25 07:26:43,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 365 transitions. [2020-09-25 07:26:43,211 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 365 transitions. Word has length 156 [2020-09-25 07:26:43,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:26:43,212 INFO L479 AbstractCegarLoop]: Abstraction has 334 states and 365 transitions. [2020-09-25 07:26:43,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:26:43,212 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 365 transitions. [2020-09-25 07:26:43,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 07:26:43,214 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:43,215 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:26:43,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:26:43,215 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:43,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:43,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1641209859, now seen corresponding path program 1 times [2020-09-25 07:26:43,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:43,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1626068129] [2020-09-25 07:26:43,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:43,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:44,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:44,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:47,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:48,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:48,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 07:26:48,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:26:48,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 07:26:48,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:48,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:48,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:26:48,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 07:26:48,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:26:48,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:48,780 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:26:48,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:26:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:48,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:48,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:48,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:26:48,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:48,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 07:26:48,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:48,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:48,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:48,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:48,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:48,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:48,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:26:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:48,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:48,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:48,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:48,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:48,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:48,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:48,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:48,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:48,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:48,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:48,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:48,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:26:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:48,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:48,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:48,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:48,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:48,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:48,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:48,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:48,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:48,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:48,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:48,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:48,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:26:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:49,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:49,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:49,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:49,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:49,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:26:49,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:49,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:49,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:49,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:49,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:49,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:49,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:26:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:49,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:49,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:49,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:49,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:49,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:49,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:49,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:49,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:49,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:26:49,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 07:26:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:49,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:49,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:49,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:26:49,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:49,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:26:49,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:49,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:49,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:49,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:49,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:26:49,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:49,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 07:26:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:49,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:49,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:49,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:49,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:49,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:26:49,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:49,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:49,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:49,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:49,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:26:49,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:49,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 07:26:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:49,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:49,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:49,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:49,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:49,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:26:49,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:49,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:49,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:26:49,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:49,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:26:49,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:49,185 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 07:26:49,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1626068129] [2020-09-25 07:26:49,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:26:49,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:26:49,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264805670] [2020-09-25 07:26:49,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:26:49,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:26:49,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:26:49,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:26:49,189 INFO L87 Difference]: Start difference. First operand 334 states and 365 transitions. Second operand 9 states. [2020-09-25 07:26:49,910 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:26:51,219 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:26:51,585 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:26:51,940 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:26:52,281 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:26:52,568 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:26:53,155 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:26:53,509 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:26:53,846 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:26:54,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:26:54,590 INFO L93 Difference]: Finished difference Result 789 states and 932 transitions. [2020-09-25 07:26:54,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:26:54,591 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 07:26:54,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:26:54,596 INFO L225 Difference]: With dead ends: 789 [2020-09-25 07:26:54,597 INFO L226 Difference]: Without dead ends: 565 [2020-09-25 07:26:54,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 07:26:54,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-09-25 07:26:54,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 496. [2020-09-25 07:26:54,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-09-25 07:26:54,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 560 transitions. [2020-09-25 07:26:54,678 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 560 transitions. Word has length 161 [2020-09-25 07:26:54,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:26:54,679 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 560 transitions. [2020-09-25 07:26:54,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:26:54,679 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 560 transitions. [2020-09-25 07:26:54,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 07:26:54,682 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:54,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:26:54,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:26:54,683 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:54,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:54,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1044492281, now seen corresponding path program 1 times [2020-09-25 07:26:54,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:54,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [487777162] [2020-09-25 07:26:54,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:54,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:55,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:59,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:59,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-25 07:26:59,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:26:59,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4624 [2020-09-25 07:26:59,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:59,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:59,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:26:59,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-09-25 07:26:59,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:26:59,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:59,662 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:26:59,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:26:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:59,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:59,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:59,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:26:59,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:59,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 07:26:59,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:59,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:59,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:59,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:59,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:59,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:59,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:26:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:59,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:59,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:59,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:59,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:59,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:26:59,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:59,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:59,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:59,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:59,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:59,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:59,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:26:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:59,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:59,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:59,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:59,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:59,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:26:59,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:59,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:59,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:59,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:59,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:59,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:59,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:26:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:59,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:59,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:59,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:59,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:59,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:59,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:59,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:59,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:59,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:59,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:59,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:59,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:26:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:59,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:59,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:59,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:59,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:59,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:26:59,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:59,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:59,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:59,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:59,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:59,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:59,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:26:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:59,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:59,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:59,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:26:59,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:59,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:59,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:59,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:59,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:59,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:59,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:59,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:59,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:26:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:59,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:59,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:59,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 07:26:59,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:59,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 07:26:59,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:59,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:59,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:26:59,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 07:26:59,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:26:59,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:59,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:26:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:59,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:59,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:59,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:26:59,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:59,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 07:26:59,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:59,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:26:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:26:59,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:59,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:26:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:59,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:59,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:59,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:26:59,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:59,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:59,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:59,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:59,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:59,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:59,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:59,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:00,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:27:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:00,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:00,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:00,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:27:00,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:00,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:00,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:00,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:00,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:00,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 07:27:00,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:00,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:00,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 07:27:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:00,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:00,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:00,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:00,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:00,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:00,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:00,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:00,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:00,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:00,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:00,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:00,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 07:27:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:00,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:00,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:00,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:00,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:00,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:00,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:00,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:00,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:00,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:00,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:00,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:00,056 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 07:27:00,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [487777162] [2020-09-25 07:27:00,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:00,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:27:00,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067520634] [2020-09-25 07:27:00,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:27:00,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:00,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:27:00,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:27:00,059 INFO L87 Difference]: Start difference. First operand 496 states and 560 transitions. Second operand 10 states. [2020-09-25 07:27:01,466 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:27:01,766 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:27:02,125 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 07:27:02,455 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:27:02,793 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:27:03,112 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187