/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=0.4 --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_spec3_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:15:43,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:15:43,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:15:43,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:15:43,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:15:43,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:15:43,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:15:43,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:15:43,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:15:43,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:15:43,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:15:43,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:15:43,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:15:43,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:15:43,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:15:43,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:15:43,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:15:43,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:15:43,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:15:43,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:15:43,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:15:43,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:15:43,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:15:43,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:15:43,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:15:43,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:15:43,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:15:43,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:15:43,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:15:43,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:15:43,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:15:43,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:15:43,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:15:43,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:15:43,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:15:43,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:15:43,166 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:15:43,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:15:43,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:15:43,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:15:43,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:15:43,170 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 05:15:43,207 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:15:43,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:15:43,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:15:43,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:15:43,209 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:15:43,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:15:43,209 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:15:43,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:15:43,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:15:43,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:15:43,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:15:43,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:15:43,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:15:43,211 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:15:43,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:15:43,211 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:15:43,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:15:43,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:15:43,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:15:43,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:15:43,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:15:43,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:15:43,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:15:43,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:15:43,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:15:43,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:15:43,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:15:43,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:15:43,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:15:43,214 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 05:15:43,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:15:43,710 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:15:43,719 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:15:43,721 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:15:43,723 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:15:43,724 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product42.cil.c [2020-09-25 05:15:43,821 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c3b6c213/6c96b696e1104affa934623d00edceed/FLAG9b7cd1a81 [2020-09-25 05:15:44,437 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:15:44,438 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product42.cil.c [2020-09-25 05:15:44,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c3b6c213/6c96b696e1104affa934623d00edceed/FLAG9b7cd1a81 [2020-09-25 05:15:44,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c3b6c213/6c96b696e1104affa934623d00edceed [2020-09-25 05:15:44,716 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:15:44,721 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:15:44,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:15:44,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:15:44,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:15:44,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:15:44" (1/1) ... [2020-09-25 05:15:44,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db1276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:44, skipping insertion in model container [2020-09-25 05:15:44,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:15:44" (1/1) ... [2020-09-25 05:15:44,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:15:44,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:15:45,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:15:45,359 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:15:45,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:15:45,473 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:15:45,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:45 WrapperNode [2020-09-25 05:15:45,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:15:45,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:15:45,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:15:45,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:15:45,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:45" (1/1) ... [2020-09-25 05:15:45,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:45" (1/1) ... [2020-09-25 05:15:45,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:45" (1/1) ... [2020-09-25 05:15:45,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:45" (1/1) ... [2020-09-25 05:15:45,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:45" (1/1) ... [2020-09-25 05:15:45,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:45" (1/1) ... [2020-09-25 05:15:45,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:45" (1/1) ... [2020-09-25 05:15:45,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:15:45,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:15:45,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:15:45,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:15:45,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:45" (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 05:15:45,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:15:45,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:15:45,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:15:45,674 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:15:45,674 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:15:45,675 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:15:45,675 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:15:45,675 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:15:45,675 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:15:45,675 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:15:45,676 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:15:45,676 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:15:45,676 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 05:15:45,676 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:15:45,676 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:15:45,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:15:45,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:15:45,677 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:15:45,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:15:45,678 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 05:15:45,678 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:15:45,678 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:15:45,678 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:15:45,678 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:15:45,679 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:15:45,679 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:15:45,679 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:15:45,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:15:45,679 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:15:45,679 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:15:45,680 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:15:45,680 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:15:45,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:15:45,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:15:45,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:15:45,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:15:45,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:15:45,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:15:45,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 05:15:45,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:15:45,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:15:45,681 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:15:45,681 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:15:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:15:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:15:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:15:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:15:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:15:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:15:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:15:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:15:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:15:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:15:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:15:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:15:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 05:15:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:15:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:15:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:15:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:15:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:15:45,685 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:15:45,685 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:15:45,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 05:15:45,685 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:15:45,685 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:15:45,685 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:15:45,686 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 05:15:45,686 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:15:45,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:15:45,686 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:15:45,686 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:15:45,686 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:15:45,687 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:15:45,687 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:15:45,687 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:15:45,687 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:15:45,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:15:45,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:15:45,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:15:45,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:15:45,688 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:15:45,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:15:45,688 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:15:45,688 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:15:45,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:15:45,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:15:45,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:15:45,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:15:45,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:15:45,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:15:45,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:15:46,826 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:15:46,827 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:15:46,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:15:46 BoogieIcfgContainer [2020-09-25 05:15:46,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:15:46,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:15:46,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:15:46,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:15:46,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:15:44" (1/3) ... [2020-09-25 05:15:46,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a343a89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:15:46, skipping insertion in model container [2020-09-25 05:15:46,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:45" (2/3) ... [2020-09-25 05:15:46,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a343a89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:15:46, skipping insertion in model container [2020-09-25 05:15:46,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:15:46" (3/3) ... [2020-09-25 05:15:46,847 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product42.cil.c [2020-09-25 05:15:46,860 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:15:46,873 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:15:46,894 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:15:46,926 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:15:46,926 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:15:46,926 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:15:46,927 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:15:46,927 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:15:46,927 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:15:46,927 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:15:46,927 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:15:46,958 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-25 05:15:46,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 05:15:46,977 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:15:46,978 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] [2020-09-25 05:15:46,979 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:15:46,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:15:46,987 INFO L82 PathProgramCache]: Analyzing trace with hash 876604812, now seen corresponding path program 1 times [2020-09-25 05:15:46,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:15:46,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [632107940] [2020-09-25 05:15:46,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:15:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:47,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:47,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:49,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:52,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:52,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 05:15:52,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:15:52,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 05:15:52,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:52,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:52,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:52,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 05:15:52,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:52,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 05:15:52,860 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:15:52,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:15:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:52,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:52,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:52,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:15:52,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:52,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 05:15:52,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:52,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:52,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:52,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:52,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:52,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:53,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:15:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:53,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:53,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:53,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:53,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:53,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:15:53,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:53,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:53,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:53,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:53,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:53,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:15:53,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:15:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:53,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:53,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:53,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:53,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:53,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:15:53,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:53,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:53,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:53,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:53,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:53,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:53,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:15:53,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:53,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:53,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:53,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:53,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:53,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:15:53,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:53,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:53,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:53,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:53,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:53,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:53,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:15:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:53,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:53,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:53,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:53,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:53,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:53,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:53,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:53,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:53,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:53,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:53,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:53,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 05:15:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:53,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:53,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:53,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:53,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:53,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:15:53,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:53,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:53,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:53,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:53,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:53,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:53,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:15:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:53,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:53,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:53,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:53,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:53,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:53,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:53,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:53,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:53,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:53,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:53,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:53,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 05:15:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:53,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:53,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:53,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:53,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:53,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:15:53,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:53,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:53,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:53,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:53,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:53,231 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 05:15:53,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [632107940] [2020-09-25 05:15:53,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:15:53,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:15:53,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290211081] [2020-09-25 05:15:53,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:15:53,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:15:53,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:15:53,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:15:53,281 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 3 states. [2020-09-25 05:15:54,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:15:54,779 INFO L93 Difference]: Finished difference Result 486 states and 575 transitions. [2020-09-25 05:15:54,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:15:54,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 05:15:54,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:15:54,803 INFO L225 Difference]: With dead ends: 486 [2020-09-25 05:15:54,804 INFO L226 Difference]: Without dead ends: 301 [2020-09-25 05:15:54,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:15:54,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-25 05:15:54,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 259. [2020-09-25 05:15:54,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-25 05:15:54,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 280 transitions. [2020-09-25 05:15:54,923 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 280 transitions. Word has length 153 [2020-09-25 05:15:54,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:15:54,924 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 280 transitions. [2020-09-25 05:15:54,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:15:54,924 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 280 transitions. [2020-09-25 05:15:54,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 05:15:54,929 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:15:54,930 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] [2020-09-25 05:15:54,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:15:54,930 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:15:54,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:15:54,931 INFO L82 PathProgramCache]: Analyzing trace with hash -880334198, now seen corresponding path program 1 times [2020-09-25 05:15:54,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:15:54,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586382192] [2020-09-25 05:15:54,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:15:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:55,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:55,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:56,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 05:16:00,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:16:00,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 05:16:00,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 05:16:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:16:00,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,338 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:16:00,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:16:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:16:00,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 05:16:00,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:00,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:00,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:00,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:16:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:00,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:00,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:00,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:00,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:00,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:16:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:00,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:16:00,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:00,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:00,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:00,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:16:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:00,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:16:00,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:00,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:00,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:00,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:16:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:00,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:00,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:00,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:00,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:00,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 05:16:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:00,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:00,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:00,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:00,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:00,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 05:16:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:00,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:00,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:00,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:00,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:00,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 05:16:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:00,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:00,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:00,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:00,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:00,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 05:16:00,619 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 05:16:00,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586382192] [2020-09-25 05:16:00,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:16:00,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:16:00,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114173039] [2020-09-25 05:16:00,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:16:00,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:16:00,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:16:00,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:16:00,626 INFO L87 Difference]: Start difference. First operand 259 states and 280 transitions. Second operand 4 states. [2020-09-25 05:16:01,377 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:16:02,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:16:02,298 INFO L93 Difference]: Finished difference Result 399 states and 446 transitions. [2020-09-25 05:16:02,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:16:02,299 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 05:16:02,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:16:02,306 INFO L225 Difference]: With dead ends: 399 [2020-09-25 05:16:02,306 INFO L226 Difference]: Without dead ends: 284 [2020-09-25 05:16:02,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:16:02,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-25 05:16:02,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 249. [2020-09-25 05:16:02,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 05:16:02,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 267 transitions. [2020-09-25 05:16:02,352 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 267 transitions. Word has length 154 [2020-09-25 05:16:02,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:16:02,353 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 267 transitions. [2020-09-25 05:16:02,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:16:02,353 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 267 transitions. [2020-09-25 05:16:02,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 05:16:02,356 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:16:02,357 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] [2020-09-25 05:16:02,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:16:02,357 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:16:02,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:16:02,357 INFO L82 PathProgramCache]: Analyzing trace with hash -2069807768, now seen corresponding path program 1 times [2020-09-25 05:16:02,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:16:02,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587964911] [2020-09-25 05:16:02,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:16:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:02,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:02,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:05,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:05,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 05:16:05,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:16:05,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3002 [2020-09-25 05:16:05,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:05,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:05,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:05,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 05:16:05,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:16:05,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:16:05,682 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:16:05,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:16:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:05,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:05,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:05,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:16:05,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:05,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 05:16:05,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:05,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:05,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:05,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:05,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:05,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:05,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:16:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:05,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:05,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:05,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:05,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:05,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:16:05,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:05,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:05,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:05,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:05,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:05,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:05,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:16:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:05,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:05,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:05,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:05,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:05,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:05,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:05,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:05,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:05,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:05,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:05,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:05,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:16:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:05,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:05,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:05,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:05,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:05,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:16:05,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:05,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:05,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:05,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:05,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:05,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:05,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:16:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:05,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:05,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:05,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:05,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:05,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:16:05,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:05,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:05,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:05,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:05,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:05,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:05,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 05:16:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:05,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:05,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:05,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:16:05,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:05,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:05,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:05,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:05,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:05,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:05,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:16:05,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:05,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 05:16:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:05,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:05,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:05,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:05,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:05,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:05,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:05,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:05,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:05,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:05,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:05,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:05,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 05:16:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:05,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:05,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:05,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:05,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:05,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:05,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:05,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:05,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:05,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:05,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:05,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:05,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 05:16:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:05,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:05,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:05,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:05,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:05,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:05,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:05,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:05,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:05,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:05,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:05,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:05,965 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 05:16:05,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1587964911] [2020-09-25 05:16:05,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:16:05,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:16:05,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791315300] [2020-09-25 05:16:05,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:16:05,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:16:05,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:16:05,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:16:05,968 INFO L87 Difference]: Start difference. First operand 249 states and 267 transitions. Second operand 5 states. [2020-09-25 05:16:06,441 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:16:07,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:16:07,334 INFO L93 Difference]: Finished difference Result 445 states and 508 transitions. [2020-09-25 05:16:07,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:16:07,335 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 05:16:07,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:16:07,340 INFO L225 Difference]: With dead ends: 445 [2020-09-25 05:16:07,340 INFO L226 Difference]: Without dead ends: 306 [2020-09-25 05:16:07,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:16:07,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-25 05:16:07,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 249. [2020-09-25 05:16:07,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 05:16:07,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 266 transitions. [2020-09-25 05:16:07,389 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 266 transitions. Word has length 167 [2020-09-25 05:16:07,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:16:07,390 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 266 transitions. [2020-09-25 05:16:07,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:16:07,390 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 266 transitions. [2020-09-25 05:16:07,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 05:16:07,393 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:16:07,393 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] [2020-09-25 05:16:07,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:16:07,393 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:16:07,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:16:07,394 INFO L82 PathProgramCache]: Analyzing trace with hash 398712319, now seen corresponding path program 1 times [2020-09-25 05:16:07,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:16:07,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1348106195] [2020-09-25 05:16:07,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:16:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:07,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:07,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:08,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:09,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:12,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:12,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 05:16:12,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:16:12,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 05:16:12,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:12,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:12,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:16:12,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 05:16:12,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:16:12,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:12,841 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:16:12,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:16:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:12,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:12,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:12,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:16:12,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:12,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 05:16:12,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:12,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:12,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:12,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:12,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:12,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:13,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:16:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:13,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:13,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:13,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:13,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:13,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:13,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:13,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:13,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:13,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:13,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:13,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:13,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:16:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:13,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:13,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:13,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:13,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:13,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:13,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:13,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:13,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:13,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:13,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:13,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:13,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:16:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:13,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:13,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:13,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:13,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:13,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:16:13,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:13,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:13,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:13,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:13,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:13,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:13,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:16:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:13,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:13,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:13,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:13,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:13,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:13,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:13,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:13,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:13,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:13,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:13,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:13,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 05:16:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:13,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:13,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:13,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:16:13,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:13,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:13,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:13,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:13,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:13,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:13,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:13,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:13,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:16:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:13,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:13,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:13,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:16:13,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:13,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:16:13,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:13,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:13,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:16:13,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:16:13,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 05:16:13,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:13,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:16:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:13,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:13,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:13,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:13,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:13,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:16:13,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:13,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:13,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:13,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:13,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:16:13,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:16:13,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 05:16:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:13,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:13,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:13,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:13,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:13,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:13,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:13,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:13,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:13,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:13,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:13,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:13,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 05:16:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:13,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:13,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:13,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:13,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:13,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:13,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:13,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:13,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:13,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:13,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:13,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:13,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 05:16:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:13,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:13,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:13,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:13,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:13,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:13,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:13,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:13,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:13,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:13,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:13,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:13,320 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 05:16:13,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1348106195] [2020-09-25 05:16:13,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:16:13,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 05:16:13,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154212628] [2020-09-25 05:16:13,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 05:16:13,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:16:13,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 05:16:13,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:16:13,323 INFO L87 Difference]: Start difference. First operand 249 states and 266 transitions. Second operand 8 states. [2020-09-25 05:16:13,862 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:16:15,605 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:16:16,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:16:16,767 INFO L93 Difference]: Finished difference Result 638 states and 749 transitions. [2020-09-25 05:16:16,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 05:16:16,768 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2020-09-25 05:16:16,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:16:16,773 INFO L225 Difference]: With dead ends: 638 [2020-09-25 05:16:16,773 INFO L226 Difference]: Without dead ends: 499 [2020-09-25 05:16:16,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-09-25 05:16:16,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-09-25 05:16:16,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 372. [2020-09-25 05:16:16,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-09-25 05:16:16,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 401 transitions. [2020-09-25 05:16:16,841 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 401 transitions. Word has length 175 [2020-09-25 05:16:16,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:16:16,842 INFO L479 AbstractCegarLoop]: Abstraction has 372 states and 401 transitions. [2020-09-25 05:16:16,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 05:16:16,842 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 401 transitions. [2020-09-25 05:16:16,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 05:16:16,845 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:16:16,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:16:16,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:16:16,846 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:16:16,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:16:16,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1043835343, now seen corresponding path program 1 times [2020-09-25 05:16:16,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:16:16,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595813123] [2020-09-25 05:16:16,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:16:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:16,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:17,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:19,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:19,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-25 05:16:19,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:16:19,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2410 [2020-09-25 05:16:19,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:19,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:19,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:16:19,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 05:16:19,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 05:16:19,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:19,726 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:16:19,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:16:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:19,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:19,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:19,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:16:19,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:19,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 05:16:19,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:19,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:19,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:19,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:19,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:19,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:19,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:16:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:19,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:19,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:19,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:19,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:19,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:19,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:19,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:19,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:19,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:19,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:19,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:19,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:16:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:19,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:19,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:19,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:19,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:19,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:19,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:19,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:19,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:19,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:19,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:19,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:16:19,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:16:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:19,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:19,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:19,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:19,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:19,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:16:19,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:19,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:19,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:19,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:19,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:19,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:19,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:16:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:19,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:19,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:19,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:19,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:19,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:19,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:19,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:19,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:19,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:19,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:19,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:16:19,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 05:16:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:19,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:19,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:19,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:16:19,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:19,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:19,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:19,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:19,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:19,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:19,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:19,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:19,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:16:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:19,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:20,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:20,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:16:20,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:20,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 05:16:20,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:20,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 05:16:20,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:20,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:16:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:20,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:20,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:20,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:16:20,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:20,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 05:16:20,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:20,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:20,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:20,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:20,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:16:20,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:20,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:16:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:20,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:20,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:20,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:16:20,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:20,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:16:20,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:20,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:20,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:20,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:20,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:16:20,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:20,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:16:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:20,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:20,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:20,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:20,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:20,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:20,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:20,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:20,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:20,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:20,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:16:20,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:16:20,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 05:16:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:20,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:20,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:20,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:20,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:20,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:16:20,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:20,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:20,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:20,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:20,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:16:20,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:16:20,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 05:16:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:20,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:20,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:20,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:20,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:20,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 05:16:20,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:20,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:20,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:16:20,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:16:20,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:16:20,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 05:16:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:20,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:20,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:20,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:20,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:20,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:20,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:20,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:20,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:20,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:20,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:20,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:16:20,289 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 05:16:20,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595813123] [2020-09-25 05:16:20,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:16:20,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 05:16:20,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128046945] [2020-09-25 05:16:20,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 05:16:20,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:16:20,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 05:16:20,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:16:20,292 INFO L87 Difference]: Start difference. First operand 372 states and 401 transitions. Second operand 11 states. [2020-09-25 05:16:20,835 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:16:23,359 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 05:16:24,006 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 05:16:24,351 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:16:24,689 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:16:25,004 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:16:25,366 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 05:16:25,666 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:16:26,072 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:16:27,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:16:27,588 INFO L93 Difference]: Finished difference Result 1074 states and 1316 transitions. [2020-09-25 05:16:27,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 05:16:27,589 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-09-25 05:16:27,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:16:27,596 INFO L225 Difference]: With dead ends: 1074 [2020-09-25 05:16:27,596 INFO L226 Difference]: Without dead ends: 812 [2020-09-25 05:16:27,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-09-25 05:16:27,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-09-25 05:16:27,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 602. [2020-09-25 05:16:27,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2020-09-25 05:16:27,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 666 transitions. [2020-09-25 05:16:27,688 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 666 transitions. Word has length 199 [2020-09-25 05:16:27,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:16:27,689 INFO L479 AbstractCegarLoop]: Abstraction has 602 states and 666 transitions. [2020-09-25 05:16:27,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 05:16:27,690 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 666 transitions. [2020-09-25 05:16:27,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-25 05:16:27,693 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:16:27,694 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:16:27,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:16:27,694 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:16:27,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:16:27,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1519010768, now seen corresponding path program 1 times [2020-09-25 05:16:27,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:16:27,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958505287] [2020-09-25 05:16:27,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:16:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:27,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:28,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:28,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-09-25 05:16:28,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:28,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 682 [2020-09-25 05:16:28,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:28,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:28,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:16:28,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-25 05:16:28,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:16:28,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:28,780 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:16:28,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:16:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:28,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:28,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:28,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:16:28,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:28,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 05:16:28,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:28,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:28,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:28,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:28,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:28,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:28,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:16:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:28,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:28,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:28,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:28,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:28,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:28,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:28,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:28,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:28,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:28,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:28,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:28,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:16:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:28,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:28,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:28,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:28,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:28,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:28,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:28,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:28,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:28,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:28,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:28,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:28,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:16:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:28,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:28,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:28,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:28,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:28,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:16:28,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:28,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:28,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:28,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:28,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:28,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:28,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:16:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:28,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:28,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:28,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:28,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:28,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:28,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:28,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:28,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:28,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:28,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:28,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:28,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 05:16:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:28,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:28,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:28,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:16:28,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:28,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:16:28,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:28,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:28,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:28,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:28,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:28,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:28,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:16:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:29,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:29,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:29,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:16:29,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:29,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:29,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:29,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:29,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:29,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:29,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:29,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:29,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:16:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:29,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:29,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:29,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:16:29,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:29,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 05:16:29,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:29,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:29,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:16:29,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 05:16:29,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:16:29,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:29,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:16:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:29,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:29,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:29,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:16:29,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:29,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 05:16:29,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:29,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:29,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:16:29,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:16:29,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:16:29,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:29,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:16:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:29,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:29,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:29,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:16:29,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:29,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 05:16:29,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:29,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:29,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:16:29,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:29,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:16:29,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:29,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:16:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:29,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:29,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:29,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:29,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:29,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:16:29,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:29,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:29,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:29,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 05:16:29,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:29,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:29,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 05:16:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:29,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:29,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:29,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:29,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:29,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:29,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:29,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:29,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:29,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:29,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:29,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:16:29,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 05:16:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:29,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:29,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:29,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:29,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:29,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:29,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:29,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:29,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:29,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:29,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:29,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:16:29,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-25 05:16:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:29,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:29,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:29,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:29,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:29,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:29,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:29,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:29,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:29,268 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 05:16:29,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958505287] [2020-09-25 05:16:29,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:16:29,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 05:16:29,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882369296] [2020-09-25 05:16:29,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:16:29,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:16:29,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:16:29,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:16:29,308 INFO L87 Difference]: Start difference. First operand 602 states and 666 transitions. Second operand 10 states. [2020-09-25 05:16:30,615 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:16:30,920 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:16:31,226 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:16:31,530 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:16:31,847 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189