/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=DEEPEST --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_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:43:59,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:43:59,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:43:59,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:43:59,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:43:59,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:43:59,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:43:59,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:43:59,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:43:59,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:43:59,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:43:59,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:43:59,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:43:59,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:43:59,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:43:59,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:43:59,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:43:59,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:43:59,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:43:59,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:43:59,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:43:59,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:43:59,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:43:59,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:43:59,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:43:59,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:43:59,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:43:59,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:43:59,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:43:59,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:43:59,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:43:59,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:43:59,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:43:59,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:43:59,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:43:59,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:43:59,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:43:59,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:43:59,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:43:59,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:43:59,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:43:59,200 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 00:43:59,227 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:43:59,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:43:59,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:43:59,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:43:59,229 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:43:59,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:43:59,229 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:43:59,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:43:59,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:43:59,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:43:59,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:43:59,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:43:59,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:43:59,231 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:43:59,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:43:59,231 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:43:59,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:43:59,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:43:59,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:43:59,232 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:43:59,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:43:59,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:43:59,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:43:59,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:43:59,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:43:59,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:43:59,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:43:59,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:43:59,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:43:59,234 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:43:59,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:43:59,762 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:43:59,770 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:43:59,773 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:43:59,775 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:43:59,776 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product54.cil.c [2020-09-25 00:43:59,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/282f4d419/9f54cf028bed4126a8d834b4491c293a/FLAG0d4e5c9fd [2020-09-25 00:44:00,509 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:44:00,510 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product54.cil.c [2020-09-25 00:44:00,525 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/282f4d419/9f54cf028bed4126a8d834b4491c293a/FLAG0d4e5c9fd [2020-09-25 00:44:00,774 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/282f4d419/9f54cf028bed4126a8d834b4491c293a [2020-09-25 00:44:00,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:44:00,794 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:44:00,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:44:00,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:44:00,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:44:00,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:44:00" (1/1) ... [2020-09-25 00:44:00,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:00, skipping insertion in model container [2020-09-25 00:44:00,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:44:00" (1/1) ... [2020-09-25 00:44:00,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:44:00,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:44:01,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:44:01,457 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:44:01,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:44:01,606 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:44:01,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:01 WrapperNode [2020-09-25 00:44:01,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:44:01,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:44:01,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:44:01,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:44:01,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:01" (1/1) ... [2020-09-25 00:44:01,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:01" (1/1) ... [2020-09-25 00:44:01,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:01" (1/1) ... [2020-09-25 00:44:01,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:01" (1/1) ... [2020-09-25 00:44:01,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:01" (1/1) ... [2020-09-25 00:44:01,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:01" (1/1) ... [2020-09-25 00:44:01,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:01" (1/1) ... [2020-09-25 00:44:01,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:44:01,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:44:01,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:44:01,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:44:01,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:01" (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 00:44:01,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:44:01,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:44:01,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:44:01,802 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:44:01,803 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:44:01,803 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:44:01,803 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:44:01,803 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:44:01,803 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:44:01,804 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:44:01,804 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 00:44:01,804 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:44:01,804 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:44:01,804 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:44:01,805 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:44:01,805 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:44:01,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:44:01,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:44:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:44:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:44:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:44:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:44:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:44:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:44:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:44:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:44:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:44:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:44:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:44:01,808 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:44:01,808 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:44:01,808 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:44:01,808 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 00:44:01,808 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:44:01,808 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:44:01,809 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:44:01,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:44:01,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:44:01,809 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:44:01,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:44:01,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 00:44:01,809 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 00:44:01,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:44:01,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:44:01,810 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:44:01,810 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:44:01,810 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:44:01,810 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:44:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:44:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:44:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:44:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:44:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 00:44:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:44:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:44:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:44:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:44:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:44:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:44:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:44:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:44:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:44:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:44:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:44:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:44:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:44:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:44:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:44:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:44:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:44:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:44:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:44:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:44:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:44:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:44:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:44:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:44:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:44:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:44:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:44:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:44:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:44:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:44:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:44:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:44:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 00:44:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:44:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:44:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:44:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:44:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:44:01,818 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:44:01,818 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 00:44:01,818 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 00:44:01,818 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:44:01,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:44:01,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:44:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:44:02,954 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:44:02,954 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:44:02,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:44:02 BoogieIcfgContainer [2020-09-25 00:44:02,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:44:02,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:44:02,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:44:02,967 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:44:02,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:44:00" (1/3) ... [2020-09-25 00:44:02,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2218cdc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:44:02, skipping insertion in model container [2020-09-25 00:44:02,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:01" (2/3) ... [2020-09-25 00:44:02,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2218cdc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:44:02, skipping insertion in model container [2020-09-25 00:44:02,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:44:02" (3/3) ... [2020-09-25 00:44:02,976 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product54.cil.c [2020-09-25 00:44:02,987 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:44:03,001 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:44:03,024 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:44:03,054 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:44:03,054 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:44:03,055 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:44:03,055 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:44:03,055 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:44:03,055 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:44:03,055 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:44:03,055 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:44:03,085 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states. [2020-09-25 00:44:03,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 00:44:03,106 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:03,107 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 00:44:03,107 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:03,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:03,114 INFO L82 PathProgramCache]: Analyzing trace with hash 900449918, now seen corresponding path program 1 times [2020-09-25 00:44:03,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:03,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1996773559] [2020-09-25 00:44:03,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:03,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:03,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:05,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:08,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:08,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 00:44:08,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:44:08,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 00:44:08,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:08,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:08,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 00:44:08,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:08,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:44:08,942 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:08,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:08,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:09,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:09,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:09,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:09,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 00:44:09,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:09,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:09,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:09,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:09,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:09,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:09,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:09,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:09,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:09,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:09,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:09,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:09,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:09,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:09,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:09,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:09,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:09,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:09,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:09,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:09,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:09,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:09,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:09,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:09,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:09,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:09,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:09,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:09,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:09,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:09,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:09,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:09,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:44:09,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:09,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:09,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:09,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:09,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:09,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:09,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:09,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:09,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:09,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:09,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:09,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:09,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:09,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:09,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:09,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:09,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 00:44:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:09,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:09,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:09,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:09,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:09,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:09,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:09,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:09,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:09,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:09,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:09,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:44:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:09,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:09,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:09,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:09,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:09,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:09,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:09,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:09,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:09,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:09,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:09,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 00:44:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:09,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:09,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:09,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:09,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:09,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:09,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:09,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:09,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:09,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:09,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:09,222 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 00:44:09,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1996773559] [2020-09-25 00:44:09,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:09,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:44:09,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373731146] [2020-09-25 00:44:09,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:44:09,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:09,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:44:09,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:44:09,269 INFO L87 Difference]: Start difference. First operand 347 states. Second operand 3 states. [2020-09-25 00:44:11,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:11,030 INFO L93 Difference]: Finished difference Result 562 states and 667 transitions. [2020-09-25 00:44:11,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:44:11,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 00:44:11,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:11,055 INFO L225 Difference]: With dead ends: 562 [2020-09-25 00:44:11,055 INFO L226 Difference]: Without dead ends: 340 [2020-09-25 00:44:11,063 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 00:44:11,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-25 00:44:11,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 296. [2020-09-25 00:44:11,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-09-25 00:44:11,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 324 transitions. [2020-09-25 00:44:11,263 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 324 transitions. Word has length 153 [2020-09-25 00:44:11,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:11,264 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 324 transitions. [2020-09-25 00:44:11,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:44:11,264 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 324 transitions. [2020-09-25 00:44:11,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 00:44:11,270 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:11,270 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 00:44:11,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:44:11,271 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:11,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:11,272 INFO L82 PathProgramCache]: Analyzing trace with hash 773490884, now seen corresponding path program 1 times [2020-09-25 00:44:11,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:11,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369906191] [2020-09-25 00:44:11,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:11,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:11,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:13,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:16,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:16,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 00:44:16,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:44:16,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:44:16,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:16,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:16,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 00:44:16,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:44:16,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:16,610 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:16,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:16,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:16,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:16,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:16,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:16,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 00:44:16,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:16,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:16,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:16,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:16,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:16,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:16,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:16,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:16,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:16,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:16,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:16,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:16,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:16,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:16,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:16,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:16,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:16,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:16,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:16,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:16,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:16,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:16,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:16,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:16,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:16,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:16,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:16,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:16,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:16,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:16,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:16,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:16,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:16,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:16,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:16,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:16,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:16,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:16,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:16,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:16,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:16,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:16,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:16,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:16,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:16,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:44:16,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:16,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:16,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:16,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:16,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:16,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 00:44:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:16,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:16,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:16,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:16,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:16,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:16,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:16,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:16,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:16,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:16,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:16,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 00:44:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:16,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:16,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:16,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:16,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:16,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:16,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:16,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:16,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 00:44:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:16,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:16,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:16,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:16,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:16,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:16,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:16,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:16,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:16,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:16,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:16,823 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 00:44:16,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369906191] [2020-09-25 00:44:16,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:16,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:44:16,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993011804] [2020-09-25 00:44:16,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:44:16,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:16,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:44:16,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:44:16,828 INFO L87 Difference]: Start difference. First operand 296 states and 324 transitions. Second operand 4 states. [2020-09-25 00:44:17,496 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:44:18,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:18,783 INFO L93 Difference]: Finished difference Result 475 states and 538 transitions. [2020-09-25 00:44:18,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:44:18,783 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 00:44:18,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:18,795 INFO L225 Difference]: With dead ends: 475 [2020-09-25 00:44:18,795 INFO L226 Difference]: Without dead ends: 323 [2020-09-25 00:44:18,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:44:18,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-09-25 00:44:18,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 286. [2020-09-25 00:44:18,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-09-25 00:44:18,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 311 transitions. [2020-09-25 00:44:18,866 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 311 transitions. Word has length 154 [2020-09-25 00:44:18,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:18,869 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 311 transitions. [2020-09-25 00:44:18,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:44:18,869 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 311 transitions. [2020-09-25 00:44:18,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 00:44:18,873 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:18,873 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 00:44:18,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:44:18,874 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:18,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:18,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1369101505, now seen corresponding path program 1 times [2020-09-25 00:44:18,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:18,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1346566128] [2020-09-25 00:44:18,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:18,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:19,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:22,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:22,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 00:44:22,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:44:22,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3120 [2020-09-25 00:44:22,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:22,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:22,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 00:44:22,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:44:22,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:22,452 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:22,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:22,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:22,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:22,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:22,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:22,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 00:44:22,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:22,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:22,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:22,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:22,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:22,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:22,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:22,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:22,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:22,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:22,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:22,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:22,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:22,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:22,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:22,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:22,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:22,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:22,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:22,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:22,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:22,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:22,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:22,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:22,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:22,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:22,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:22,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:22,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:22,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:22,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:22,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:22,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:44:22,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:22,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:22,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:22,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:22,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:22,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:22,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:22,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:22,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:22,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:22,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:22,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:22,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:22,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:22,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:22,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:22,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 00:44:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:22,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:22,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:22,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:44:22,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:22,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:22,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:22,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:22,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:22,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 00:44:22,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:22,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 00:44:22,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:22,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:22,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:22,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:22,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:22,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:22,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:22,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:22,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:22,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:22,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:22,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 00:44:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:22,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:22,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:22,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:22,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:22,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:22,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:22,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:22,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:22,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:22,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:22,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 00:44:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:22,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:22,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:22,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:22,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:22,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:22,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:22,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:22,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:22,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:22,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:22,770 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 00:44:22,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1346566128] [2020-09-25 00:44:22,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:22,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:44:22,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077755362] [2020-09-25 00:44:22,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:44:22,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:22,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:44:22,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:44:22,774 INFO L87 Difference]: Start difference. First operand 286 states and 311 transitions. Second operand 5 states. [2020-09-25 00:44:23,394 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:44:24,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:24,672 INFO L93 Difference]: Finished difference Result 521 states and 600 transitions. [2020-09-25 00:44:24,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:44:24,674 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 00:44:24,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:24,678 INFO L225 Difference]: With dead ends: 521 [2020-09-25 00:44:24,678 INFO L226 Difference]: Without dead ends: 345 [2020-09-25 00:44:24,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:44:24,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-25 00:44:24,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 286. [2020-09-25 00:44:24,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-09-25 00:44:24,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 310 transitions. [2020-09-25 00:44:24,732 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 310 transitions. Word has length 167 [2020-09-25 00:44:24,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:24,732 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 310 transitions. [2020-09-25 00:44:24,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:44:24,733 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 310 transitions. [2020-09-25 00:44:24,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-25 00:44:24,735 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:24,736 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] [2020-09-25 00:44:24,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:44:24,736 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:24,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:24,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1017575846, now seen corresponding path program 1 times [2020-09-25 00:44:24,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:24,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777279203] [2020-09-25 00:44:24,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:24,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:25,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:25,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:26,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:28,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:29,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:29,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-09-25 00:44:29,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:44:29,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 00:44:29,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:29,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:44:29,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-25 00:44:29,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:44:29,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:30,192 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:30,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:30,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:30,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:30,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:30,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:30,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 00:44:30,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:30,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:30,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:30,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:30,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:30,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:30,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:30,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:30,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:30,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:30,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:30,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:30,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:30,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:30,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:30,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:30,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:30,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:30,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:30,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:30,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:30,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:44:30,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:30,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:30,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:30,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:30,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:30,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:30,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:30,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:30,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:30,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:30,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:30,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:30,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:30,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:30,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:30,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:30,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:30,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:30,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:30,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:30,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:30,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:30,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:30,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:30,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:30,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:30,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:30,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 00:44:30,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:30,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:30,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:30,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:44:30,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:30,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:30,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:30,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:30,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:30,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:30,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:30,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:44:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:30,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:30,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:30,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:30,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 00:44:30,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:44:30,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 00:44:30,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:30,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:44:30,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 00:44:30,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:44:30,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:30,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:44:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:30,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:30,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:30,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 00:44:30,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:30,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:44:30,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:30,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:44:30,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 00:44:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:44:30,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:30,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:44:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:30,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:30,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:30,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 00:44:30,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:30,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:44:30,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:30,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:44:30,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 00:44:30,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 00:44:30,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:30,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:44:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:30,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:30,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:30,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:30,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:30,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:30,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:30,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:30,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:30,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:44:30,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:30,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 00:44:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:30,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:30,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:30,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:30,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:30,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:30,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:30,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:30,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:30,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:30,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:30,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 00:44:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:30,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:30,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:30,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:30,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:30,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:30,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:30,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:30,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:30,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:30,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:30,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-25 00:44:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:30,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:30,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:30,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:30,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:30,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:30,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:30,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:30,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:30,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:30,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:30,514 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 00:44:30,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777279203] [2020-09-25 00:44:30,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:30,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 00:44:30,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784582345] [2020-09-25 00:44:30,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:44:30,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:30,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:44:30,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:44:30,518 INFO L87 Difference]: Start difference. First operand 286 states and 310 transitions. Second operand 7 states. [2020-09-25 00:44:31,018 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:44:32,790 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:44:33,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:33,868 INFO L93 Difference]: Finished difference Result 729 states and 861 transitions. [2020-09-25 00:44:33,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 00:44:33,871 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 185 [2020-09-25 00:44:33,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:33,876 INFO L225 Difference]: With dead ends: 729 [2020-09-25 00:44:33,877 INFO L226 Difference]: Without dead ends: 553 [2020-09-25 00:44:33,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:44:33,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2020-09-25 00:44:33,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 426. [2020-09-25 00:44:33,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-09-25 00:44:33,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 459 transitions. [2020-09-25 00:44:33,947 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 459 transitions. Word has length 185 [2020-09-25 00:44:33,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:33,948 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 459 transitions. [2020-09-25 00:44:33,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:44:33,948 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 459 transitions. [2020-09-25 00:44:33,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-09-25 00:44:33,951 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:33,951 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, 1, 1, 1, 1, 1] [2020-09-25 00:44:33,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:44:33,952 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:33,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:33,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1341999149, now seen corresponding path program 1 times [2020-09-25 00:44:33,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:33,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224949286] [2020-09-25 00:44:33,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:34,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:34,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-09-25 00:44:36,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:44:36,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2556 [2020-09-25 00:44:36,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:44:36,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-09-25 00:44:36,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 00:44:36,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:36,969 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:36,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:37,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:37,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:37,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:37,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 00:44:37,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:37,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:37,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:37,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:37,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:37,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:37,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:37,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:37,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:37,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:37,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:37,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:37,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:37,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:37,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:37,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:37,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:37,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:37,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:37,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:37,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:37,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:37,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:37,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:37,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:37,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:37,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:37,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:37,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:37,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:37,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:37,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:37,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:37,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:37,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:37,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:37,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:37,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:37,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:37,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:37,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 00:44:37,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:37,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:37,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:37,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:44:37,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:37,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:37,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:37,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:37,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:37,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:44:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:37,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:37,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:37,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 00:44:37,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 00:44:37,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:37,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:37,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 00:44:37,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:37,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:44:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:37,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:37,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:37,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 00:44:37,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 00:44:37,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:37,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:37,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 00:44:37,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:37,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:44:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:37,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:37,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:37,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 00:44:37,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 00:44:37,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:37,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:37,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 00:44:37,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:37,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:44:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:37,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:37,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:37,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:44:37,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 00:44:37,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:37,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:37,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:44:37,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:37,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:44:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:37,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:37,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:37,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:44:37,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:44:37,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:37,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:37,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:44:37,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:37,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:44:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:37,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:37,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:37,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:37,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:44:37,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:37,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:37,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:44:37,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:37,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 00:44:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:37,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:37,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:37,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:37,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:37,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:37,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:37,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:37,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:37,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 00:44:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:37,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:37,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:37,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:37,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:44:37,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:44:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:37,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:37,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:37,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-25 00:44:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:37,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:37,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:37,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:37,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:37,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:37,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:37,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:37,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:37,624 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 00:44:37,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [224949286] [2020-09-25 00:44:37,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:37,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 00:44:37,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693566473] [2020-09-25 00:44:37,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 00:44:37,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:37,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 00:44:37,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:44:37,628 INFO L87 Difference]: Start difference. First operand 426 states and 459 transitions. Second operand 11 states. [2020-09-25 00:44:38,180 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:44:40,242 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:44:40,570 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:44:40,920 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:44:41,279 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:44:41,574 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:44:41,890 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:44:42,181 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:44:42,610 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:44:44,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:44,737 INFO L93 Difference]: Finished difference Result 1236 states and 1510 transitions. [2020-09-25 00:44:44,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 00:44:44,738 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 209 [2020-09-25 00:44:44,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:44,745 INFO L225 Difference]: With dead ends: 1236 [2020-09-25 00:44:44,745 INFO L226 Difference]: Without dead ends: 920 [2020-09-25 00:44:44,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-09-25 00:44:44,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2020-09-25 00:44:44,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 710. [2020-09-25 00:44:44,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 710 states. [2020-09-25 00:44:44,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 788 transitions. [2020-09-25 00:44:44,852 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 788 transitions. Word has length 209 [2020-09-25 00:44:44,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:44,853 INFO L479 AbstractCegarLoop]: Abstraction has 710 states and 788 transitions. [2020-09-25 00:44:44,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 00:44:44,853 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 788 transitions. [2020-09-25 00:44:44,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-09-25 00:44:44,857 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:44,857 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:44:44,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:44:44,857 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:44,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:44,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1540758972, now seen corresponding path program 1 times [2020-09-25 00:44:44,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:44,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651356405] [2020-09-25 00:44:44,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:44,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:45,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:45,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-25 00:44:45,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:45,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 721 [2020-09-25 00:44:45,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:45,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:44:45,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-09-25 00:44:45,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:44:45,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:45,918 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:45,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:45,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:46,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:46,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:46,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:46,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 00:44:46,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:46,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:46,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:46,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:46,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:46,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:46,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:46,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:46,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:46,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:46,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:46,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:46,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:46,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:46,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:46,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:46,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:46,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:46,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:46,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:46,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:46,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:44:46,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:46,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:46,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:46,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:46,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:46,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:46,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:46,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:46,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:46,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:46,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:46,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:46,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:46,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:46,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:46,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:46,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:46,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:46,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:46,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:46,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:46,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:46,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:46,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:46,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:46,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:46,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:46,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 00:44:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:46,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:46,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:46,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:44:46,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:46,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:46,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:46,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:46,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:46,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:46,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:46,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 00:44:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:46,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:46,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:46,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:44:46,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:46,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:46,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:46,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:46,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:46,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:46,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:46,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 00:44:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:46,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:46,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:46,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 00:44:46,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:46,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 00:44:46,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:46,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:44:46,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 00:44:46,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:44:46,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:46,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:44:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:46,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:46,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:46,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 00:44:46,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:46,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 00:44:46,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:46,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:44:46,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:44:46,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:44:46,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:46,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:44:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:46,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:46,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:46,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 00:44:46,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:46,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 00:44:46,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:46,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:44:46,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:44:46,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:44:46,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:46,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:44:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:46,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:46,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:46,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:44:46,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:46,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 00:44:46,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:46,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:44:46,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:44:46,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:44:46,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:46,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:44:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:46,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:46,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:46,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:44:46,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:46,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 00:44:46,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:46,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:44:46,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:46,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:46,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:46,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:44:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:46,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:46,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:46,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:46,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:46,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:46,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:46,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:46,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 00:44:46,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:46,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:46,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 00:44:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:46,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:46,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:46,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:46,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:46,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:46,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:46,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:46,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:46,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:46,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:46,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-25 00:44:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:46,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:46,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:46,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:46,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:46,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:46,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:46,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:46,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-09-25 00:44:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:46,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:46,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:46,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:46,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:46,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:46,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:46,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:46,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:46,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:46,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:46,571 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 00:44:46,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651356405] [2020-09-25 00:44:46,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:46,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 00:44:46,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409362408] [2020-09-25 00:44:46,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:44:46,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:46,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:44:46,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:44:46,578 INFO L87 Difference]: Start difference. First operand 710 states and 788 transitions. Second operand 10 states.