/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 --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 interpolation-heuristic=FIRST --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_spec4_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:13:04,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:13:04,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:13:04,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:13:04,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:13:04,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:13:04,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:13:04,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:13:04,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:13:04,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:13:04,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:13:04,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:13:04,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:13:04,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:13:04,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:13:04,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:13:04,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:13:04,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:13:04,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:13:04,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:13:04,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:13:04,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:13:04,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:13:04,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:13:04,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:13:04,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:13:04,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:13:04,641 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:13:04,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:13:04,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:13:04,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:13:04,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:13:04,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:13:04,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:13:04,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:13:04,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:13:04,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:13:04,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:13:04,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:13:04,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:13:04,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:13:04,653 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 [2020-09-21 11:13:04,704 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:13:04,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:13:04,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:13:04,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:13:04,707 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:13:04,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:13:04,708 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:13:04,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:13:04,708 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:13:04,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:13:04,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:13:04,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:13:04,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:13:04,710 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:13:04,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:13:04,711 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:13:04,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:13:04,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:13:04,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:13:04,711 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:13:04,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:13:04,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:13:04,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:13:04,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:13:04,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:13:04,713 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:13:04,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:13:04,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:13:04,713 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:13:04,713 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:13:05,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:13:05,211 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:13:05,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:13:05,219 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:13:05,220 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:13:05,221 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c [2020-09-21 11:13:05,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/069ce77f7/d3c625f329d048fc9434eeca8fffdd7e/FLAGfdf4ef546 [2020-09-21 11:13:05,909 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:13:05,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c [2020-09-21 11:13:05,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/069ce77f7/d3c625f329d048fc9434eeca8fffdd7e/FLAGfdf4ef546 [2020-09-21 11:13:06,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/069ce77f7/d3c625f329d048fc9434eeca8fffdd7e [2020-09-21 11:13:06,194 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:13:06,200 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:13:06,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:13:06,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:13:06,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:13:06,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:13:06" (1/1) ... [2020-09-21 11:13:06,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:06, skipping insertion in model container [2020-09-21 11:13:06,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:13:06" (1/1) ... [2020-09-21 11:13:06,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:13:06,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:13:06,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:13:06,672 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:13:06,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:13:06,957 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:13:06,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:06 WrapperNode [2020-09-21 11:13:06,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:13:06,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:13:06,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:13:06,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:13:06,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:06" (1/1) ... [2020-09-21 11:13:06,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:06" (1/1) ... [2020-09-21 11:13:06,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:06" (1/1) ... [2020-09-21 11:13:06,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:06" (1/1) ... [2020-09-21 11:13:07,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:06" (1/1) ... [2020-09-21 11:13:07,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:06" (1/1) ... [2020-09-21 11:13:07,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:06" (1/1) ... [2020-09-21 11:13:07,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:13:07,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:13:07,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:13:07,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:13:07,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:06" (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 [2020-09-21 11:13:07,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:13:07,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:13:07,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:13:07,133 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:13:07,133 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:13:07,133 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:13:07,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:13:07,133 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:13:07,134 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:13:07,134 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:13:07,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:13:07,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:13:07,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:13:07,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:13:07,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:13:07,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:13:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:13:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:13:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:13:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:13:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:13:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:13:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:13:07,137 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:13:07,137 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:13:07,137 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:13:07,137 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:13:07,137 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:13:07,137 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:13:07,138 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:13:07,138 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-21 11:13:07,138 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:13:07,138 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:13:07,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:13:07,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:13:07,138 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:13:07,139 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:13:07,139 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 11:13:07,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:13:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:13:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:13:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:13:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:13:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:13:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:13:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:13:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:13:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:13:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:13:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:13:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:13:07,141 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:13:07,141 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:13:07,142 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:13:07,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:13:07,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:13:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:13:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:13:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:13:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:13:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:13:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:13:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:13:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:13:07,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:13:07,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:13:07,147 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:13:07,147 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:13:07,147 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:13:07,147 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:13:07,148 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:13:07,148 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:13:07,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:13:07,149 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:13:07,150 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:13:07,150 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:13:07,151 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:13:07,151 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:13:07,151 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:13:07,151 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:13:07,151 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:13:07,151 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 11:13:07,152 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:13:07,152 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:13:07,152 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:13:07,152 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:13:07,152 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:13:07,152 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-21 11:13:07,152 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:13:07,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:13:07,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:13:07,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:13:08,343 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:13:08,343 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:13:08,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:13:08 BoogieIcfgContainer [2020-09-21 11:13:08,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:13:08,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:13:08,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:13:08,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:13:08,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:13:06" (1/3) ... [2020-09-21 11:13:08,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372ec5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:13:08, skipping insertion in model container [2020-09-21 11:13:08,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:06" (2/3) ... [2020-09-21 11:13:08,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372ec5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:13:08, skipping insertion in model container [2020-09-21 11:13:08,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:13:08" (3/3) ... [2020-09-21 11:13:08,365 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product42.cil.c [2020-09-21 11:13:08,378 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:13:08,391 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:13:08,412 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:13:08,439 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:13:08,439 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:13:08,439 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:13:08,439 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:13:08,439 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:13:08,440 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:13:08,440 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:13:08,440 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:13:08,467 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states. [2020-09-21 11:13:08,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 11:13:08,478 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:08,480 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] [2020-09-21 11:13:08,480 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:08,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:08,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1708045389, now seen corresponding path program 1 times [2020-09-21 11:13:08,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:08,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184495480] [2020-09-21 11:13:08,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,911 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,911 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,916 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-21 11:13:08,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:13:08,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:13:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:08,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:13:09,346 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:09,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,365 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,366 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,366 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,366 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:09,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:09,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:09,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:09,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:09,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,423 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,423 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,424 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,424 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:09,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:09,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:09,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:09,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:09,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,430 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,431 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,431 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,431 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:09,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:09,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:09,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:09,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:09,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,437 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,438 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,438 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,438 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:09,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:09,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:09,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:09,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:09,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,445 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,446 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,446 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,446 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:09,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:09,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:09,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:09,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:09,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:13:09,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,456 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,456 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,456 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,456 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:09,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:09,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:09,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:09,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:09,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:09,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:13:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,468 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,469 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,469 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,469 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:09,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:09,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:09,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:09,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:09,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:09,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:09,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184495480] [2020-09-21 11:13:09,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:09,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:13:09,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656351709] [2020-09-21 11:13:09,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:13:09,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:09,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:13:09,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:13:09,524 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 3 states. [2020-09-21 11:13:10,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:10,652 INFO L93 Difference]: Finished difference Result 290 states and 375 transitions. [2020-09-21 11:13:10,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:13:10,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 11:13:10,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:10,672 INFO L225 Difference]: With dead ends: 290 [2020-09-21 11:13:10,672 INFO L226 Difference]: Without dead ends: 157 [2020-09-21 11:13:10,678 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:13:10,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-09-21 11:13:10,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 124. [2020-09-21 11:13:10,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-09-21 11:13:10,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2020-09-21 11:13:10,779 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 46 [2020-09-21 11:13:10,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:10,780 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2020-09-21 11:13:10,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:13:10,780 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2020-09-21 11:13:10,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 11:13:10,783 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:10,784 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] [2020-09-21 11:13:10,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:13:10,784 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:10,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:10,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1677032245, now seen corresponding path program 1 times [2020-09-21 11:13:10,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:10,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1213403519] [2020-09-21 11:13:10,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:10,852 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:10,853 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:10,853 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:10,853 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:10,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:13:10,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:10,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:13:10,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:10,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:10,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:13:10,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:10,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:11,151 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:11,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:11,161 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:11,162 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:11,162 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:11,162 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:11,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:11,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:11,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:11,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:11,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:11,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:11,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:11,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:11,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:11,231 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:11,231 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:11,232 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:11,232 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:11,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:11,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:11,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:11,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:11,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:11,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:11,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:11,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:11,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:11,236 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:11,236 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:11,237 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:11,237 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:11,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:11,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:11,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:11,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:11,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:11,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:11,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:11,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:11,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:11,241 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:11,242 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:11,242 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:11,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:11,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:11,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:11,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:11,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:11,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:11,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:11,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:11,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:11,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:11,247 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:11,248 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:11,248 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:11,248 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:11,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:11,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:11,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:11,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:11,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:11,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:11,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:11,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:11,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:13:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:11,253 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:11,253 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:11,253 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:11,253 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:11,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:11,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:11,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:11,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:11,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:11,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:11,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:11,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:11,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:11,258 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:11,259 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:11,259 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:11,259 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:11,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:11,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:11,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:11,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:11,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:11,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:11,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:11,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:11,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:11,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1213403519] [2020-09-21 11:13:11,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:11,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:13:11,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962951729] [2020-09-21 11:13:11,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:13:11,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:11,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:13:11,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:13:11,274 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand 4 states. [2020-09-21 11:13:11,698 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:12,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:12,442 INFO L93 Difference]: Finished difference Result 219 states and 262 transitions. [2020-09-21 11:13:12,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:13:12,444 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 11:13:12,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:12,449 INFO L225 Difference]: With dead ends: 219 [2020-09-21 11:13:12,449 INFO L226 Difference]: Without dead ends: 141 [2020-09-21 11:13:12,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:13:12,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-09-21 11:13:12,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 115. [2020-09-21 11:13:12,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-09-21 11:13:12,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 131 transitions. [2020-09-21 11:13:12,486 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 131 transitions. Word has length 47 [2020-09-21 11:13:12,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:12,486 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 131 transitions. [2020-09-21 11:13:12,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:13:12,486 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 131 transitions. [2020-09-21 11:13:12,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:13:12,488 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:12,488 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] [2020-09-21 11:13:12,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:13:12,489 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:12,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:12,489 INFO L82 PathProgramCache]: Analyzing trace with hash -115096576, now seen corresponding path program 1 times [2020-09-21 11:13:12,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:12,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [338057862] [2020-09-21 11:13:12,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,952 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:12,952 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,952 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,952 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 11:13:12,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 409 [2020-09-21 11:13:12,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:13:12,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:12,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 11:13:12,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,278 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:13,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,359 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,359 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,359 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,360 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:13,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 11:13:13,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:13,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:13,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:13,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,401 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,401 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,402 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,402 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:13,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:13,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:13,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:13,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:13,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,407 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,407 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,407 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:13,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:13,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:13,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:13,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:13,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,413 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,413 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,414 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,414 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:13,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:13,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:13,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:13,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:13,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,462 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,463 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,463 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,463 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:13,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:13,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:13,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:13,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:13,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:13:13,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:13:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,472 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,472 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,472 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,472 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:13,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:13,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:13,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:13,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:13,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:13:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:13,477 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:13,477 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:13,478 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:13,479 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:13,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:13,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:13,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:13,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:13,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:13,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:13,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:13,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:13,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:13,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [338057862] [2020-09-21 11:13:13,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:13,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:13:13,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826427761] [2020-09-21 11:13:13,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:13:13,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:13,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:13:13,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:13:13,491 INFO L87 Difference]: Start difference. First operand 115 states and 131 transitions. Second operand 4 states. [2020-09-21 11:13:13,880 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:14,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:14,647 INFO L93 Difference]: Finished difference Result 232 states and 280 transitions. [2020-09-21 11:13:14,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:13:14,648 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-09-21 11:13:14,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:14,652 INFO L225 Difference]: With dead ends: 232 [2020-09-21 11:13:14,652 INFO L226 Difference]: Without dead ends: 141 [2020-09-21 11:13:14,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:13:14,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-09-21 11:13:14,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 115. [2020-09-21 11:13:14,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-09-21 11:13:14,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 130 transitions. [2020-09-21 11:13:14,720 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 130 transitions. Word has length 52 [2020-09-21 11:13:14,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:14,720 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 130 transitions. [2020-09-21 11:13:14,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:13:14,720 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 130 transitions. [2020-09-21 11:13:14,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-21 11:13:14,730 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:14,730 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] [2020-09-21 11:13:14,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:13:14,731 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:14,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:14,731 INFO L82 PathProgramCache]: Analyzing trace with hash -721685397, now seen corresponding path program 1 times [2020-09-21 11:13:14,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:14,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77970027] [2020-09-21 11:13:14,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,153 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,153 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,153 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,153 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-21 11:13:15,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-09-21 11:13:15,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:13:15,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:15,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-21 11:13:15,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,433 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:15,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,559 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,559 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,559 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:15,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-21 11:13:15,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:15,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:15,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,602 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,602 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,602 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,602 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:15,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:15,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:15,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:15,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,607 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,607 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,608 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:15,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:15,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:15,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,613 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,613 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,613 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,614 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:15,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:15,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:15,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,619 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,619 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,620 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,620 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:15,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:15,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:15,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:13:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,640 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,640 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,640 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,641 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:15,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:15,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:13:15,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,706 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,706 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,707 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,707 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:15,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:15,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:15,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:15,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:15,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 11:13:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,715 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,715 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,716 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,716 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:15,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:15,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-09-21 11:13:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,722 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,722 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,722 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,722 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:15,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:15,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:15,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77970027] [2020-09-21 11:13:15,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:15,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:13:15,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282851863] [2020-09-21 11:13:15,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:13:15,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:15,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:13:15,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:13:15,739 INFO L87 Difference]: Start difference. First operand 115 states and 130 transitions. Second operand 7 states. [2020-09-21 11:13:16,173 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:17,610 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:13:18,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:18,185 INFO L93 Difference]: Finished difference Result 320 states and 390 transitions. [2020-09-21 11:13:18,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:13:18,186 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-09-21 11:13:18,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:18,189 INFO L225 Difference]: With dead ends: 320 [2020-09-21 11:13:18,189 INFO L226 Difference]: Without dead ends: 229 [2020-09-21 11:13:18,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:13:18,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-09-21 11:13:18,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 186. [2020-09-21 11:13:18,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-09-21 11:13:18,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 211 transitions. [2020-09-21 11:13:18,239 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 211 transitions. Word has length 60 [2020-09-21 11:13:18,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:18,240 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 211 transitions. [2020-09-21 11:13:18,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:13:18,240 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 211 transitions. [2020-09-21 11:13:18,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-21 11:13:18,242 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:18,242 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] [2020-09-21 11:13:18,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:13:18,242 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:18,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:18,243 INFO L82 PathProgramCache]: Analyzing trace with hash -468283367, now seen corresponding path program 1 times [2020-09-21 11:13:18,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:18,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281538324] [2020-09-21 11:13:18,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,294 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:18,295 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -44 [2020-09-21 11:13:18,295 FATAL L256 erpolLogProxyWrapper]: Difference in width: 44 [2020-09-21 11:13:18,295 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-21 11:13:18,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:13:18,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:18,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-21 11:13:18,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:18,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,617 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:18,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,629 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,629 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,629 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,630 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:18,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,665 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,666 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,666 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,666 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:18,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:18,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,672 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,672 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,672 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,672 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:18,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,676 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,677 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,677 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,678 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:18,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,684 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,684 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,684 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,685 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:18,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:18,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:13:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,706 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,706 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,707 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,707 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:18,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:18,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:18,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:13:18,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:18,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:18,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,723 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,724 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,724 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,725 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:18,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:18,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:18,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:13:18,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:18,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:18,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,758 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,759 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,759 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,760 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:18,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:18,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:13:18,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:18,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:18,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,781 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,781 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,781 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,781 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:18,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:13:18,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-21 11:13:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,787 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,788 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,788 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,788 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:18,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:18,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-21 11:13:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,795 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,795 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,796 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,796 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:18,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:18,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:18,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281538324] [2020-09-21 11:13:18,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:18,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:13:18,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285364783] [2020-09-21 11:13:18,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:13:18,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:18,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:13:18,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:13:18,813 INFO L87 Difference]: Start difference. First operand 186 states and 211 transitions. Second operand 7 states. [2020-09-21 11:13:19,874 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:20,189 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:20,494 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:21,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:21,340 INFO L93 Difference]: Finished difference Result 392 states and 476 transitions. [2020-09-21 11:13:21,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:13:21,341 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-09-21 11:13:21,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:21,344 INFO L225 Difference]: With dead ends: 392 [2020-09-21 11:13:21,344 INFO L226 Difference]: Without dead ends: 230 [2020-09-21 11:13:21,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:13:21,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-09-21 11:13:21,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 190. [2020-09-21 11:13:21,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-09-21 11:13:21,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 215 transitions. [2020-09-21 11:13:21,404 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 215 transitions. Word has length 74 [2020-09-21 11:13:21,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:21,405 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 215 transitions. [2020-09-21 11:13:21,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:13:21,405 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 215 transitions. [2020-09-21 11:13:21,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-21 11:13:21,407 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:21,407 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] [2020-09-21 11:13:21,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:13:21,407 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:21,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:21,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1903455895, now seen corresponding path program 1 times [2020-09-21 11:13:21,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:21,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [229118804] [2020-09-21 11:13:21,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,924 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:21,925 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:21,925 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:21,926 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-21 11:13:21,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 465 [2020-09-21 11:13:21,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:13:21,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:21,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-21 11:13:21,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:22,255 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:22,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,315 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,315 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,315 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,315 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:13:22,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:22,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,351 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,351 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,351 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,351 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:22,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:22,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,357 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,357 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,357 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,357 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:22,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:22,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,365 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,365 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,366 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,366 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:22,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:22,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,373 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,373 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,373 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,373 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:22,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:22,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:22,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:13:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,389 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,390 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,390 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,390 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:22,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:13:22,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,397 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,397 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,397 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,398 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:22,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,403 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,403 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,404 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,404 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:22,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,408 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,409 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,409 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,409 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:22,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-21 11:13:22,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,416 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,417 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,417 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,417 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:22,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:22,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:22,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-21 11:13:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,432 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,432 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,432 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,432 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:22,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:22,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [229118804] [2020-09-21 11:13:22,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:22,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:13:22,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493865508] [2020-09-21 11:13:22,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:13:22,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:22,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:13:22,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:13:22,449 INFO L87 Difference]: Start difference. First operand 190 states and 215 transitions. Second operand 8 states. [2020-09-21 11:13:22,906 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:24,143 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:24,495 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:24,823 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:25,094 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:26,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:26,095 INFO L93 Difference]: Finished difference Result 520 states and 645 transitions. [2020-09-21 11:13:26,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:26,096 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-09-21 11:13:26,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:26,100 INFO L225 Difference]: With dead ends: 520 [2020-09-21 11:13:26,100 INFO L226 Difference]: Without dead ends: 354 [2020-09-21 11:13:26,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:13:26,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-09-21 11:13:26,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 315. [2020-09-21 11:13:26,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2020-09-21 11:13:26,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 361 transitions. [2020-09-21 11:13:26,176 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 361 transitions. Word has length 74 [2020-09-21 11:13:26,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:26,176 INFO L479 AbstractCegarLoop]: Abstraction has 315 states and 361 transitions. [2020-09-21 11:13:26,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:13:26,176 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 361 transitions. [2020-09-21 11:13:26,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 11:13:26,178 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:26,178 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] [2020-09-21 11:13:26,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:13:26,178 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:26,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:26,179 INFO L82 PathProgramCache]: Analyzing trace with hash -836838959, now seen corresponding path program 1 times [2020-09-21 11:13:26,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:26,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [462188384] [2020-09-21 11:13:26,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:26,643 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:26,643 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:26,644 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:26,644 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:26,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:13:26,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:26,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 420 [2020-09-21 11:13:26,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:26,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:13:26,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:26,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:13:26,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:26,986 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:26,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,048 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,048 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,048 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,048 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:13:27,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:27,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:27,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,082 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,082 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,082 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,082 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:27,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:27,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:27,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,087 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,087 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,087 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,088 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:27,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:27,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:27,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,092 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,093 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,093 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,093 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:27,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:27,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:27,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,099 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,100 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,100 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,100 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:27,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:27,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:27,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,126 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,126 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,126 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,127 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:13:27,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:27,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:27,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:27,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:13:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,160 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,160 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,160 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,160 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:27,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:27,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:27,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:13:27,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:13:27,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,179 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,180 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,180 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:27,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:27,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:13:27,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,188 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,188 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,189 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,189 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:27,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:27,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:27,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:27,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,195 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,196 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,196 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,196 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:27,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:27,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:27,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 11:13:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,201 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,201 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,202 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,202 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:27,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:13:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,206 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,207 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,207 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,207 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:27,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:27,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [462188384] [2020-09-21 11:13:27,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:27,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:13:27,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156915078] [2020-09-21 11:13:27,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:27,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:27,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:27,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:27,223 INFO L87 Difference]: Start difference. First operand 315 states and 361 transitions. Second operand 9 states. [2020-09-21 11:13:27,612 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:28,190 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:29,974 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:31,144 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-21 11:13:32,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:32,341 INFO L93 Difference]: Finished difference Result 771 states and 951 transitions. [2020-09-21 11:13:32,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 11:13:32,343 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-09-21 11:13:32,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:32,347 INFO L225 Difference]: With dead ends: 771 [2020-09-21 11:13:32,348 INFO L226 Difference]: Without dead ends: 594 [2020-09-21 11:13:32,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:13:32,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2020-09-21 11:13:32,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 546. [2020-09-21 11:13:32,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2020-09-21 11:13:32,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 643 transitions. [2020-09-21 11:13:32,448 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 643 transitions. Word has length 78 [2020-09-21 11:13:32,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:32,449 INFO L479 AbstractCegarLoop]: Abstraction has 546 states and 643 transitions. [2020-09-21 11:13:32,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:13:32,449 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 643 transitions. [2020-09-21 11:13:32,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 11:13:32,450 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:32,451 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] [2020-09-21 11:13:32,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:13:32,451 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:32,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:32,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1437189012, now seen corresponding path program 1 times [2020-09-21 11:13:32,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:32,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1867395589] [2020-09-21 11:13:32,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,503 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:32,503 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -54 [2020-09-21 11:13:32,504 FATAL L256 erpolLogProxyWrapper]: Difference in width: 54 [2020-09-21 11:13:32,504 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:13:32,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:32,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:32,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-21 11:13:32,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:32,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,799 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:32,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,808 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,808 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,809 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,809 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:32,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:32,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:32,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:32,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:32,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,837 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,837 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,837 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,837 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:32,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:32,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:32,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:32,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:32,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,841 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,841 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,841 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,842 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:32,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:32,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:32,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:32,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:32,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,846 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,846 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,846 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,846 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:32,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:32,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:32,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:32,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:32,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,851 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,851 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,851 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,852 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:32,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:32,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:32,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,864 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,864 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,864 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,864 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:32,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:32,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:32,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:32,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:32,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:13:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,884 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,884 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,885 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,885 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:32,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:13:32,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:32,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:13:32,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:32,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,919 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,920 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,920 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,920 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:32,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:32,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:32,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:32,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:13:32,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,952 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,953 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,953 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,953 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:32,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:32,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:32,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:32,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:32,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:32,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,958 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,959 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,959 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,959 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:32,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:32,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:32,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:13:32,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:32,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 11:13:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,965 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,965 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,966 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,966 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:32,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:32,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:32,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:32,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:32,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:13:32,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,971 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,971 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,972 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,972 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:32,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:32,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:32,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:32,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:32,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:32,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1867395589] [2020-09-21 11:13:32,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:32,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:13:32,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384235686] [2020-09-21 11:13:32,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:32,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:32,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:32,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:32,992 INFO L87 Difference]: Start difference. First operand 546 states and 643 transitions. Second operand 9 states. [2020-09-21 11:13:34,087 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:34,332 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:34,661 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:34,963 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:36,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:36,138 INFO L93 Difference]: Finished difference Result 999 states and 1216 transitions. [2020-09-21 11:13:36,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:36,140 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-09-21 11:13:36,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:36,144 INFO L225 Difference]: With dead ends: 999 [2020-09-21 11:13:36,145 INFO L226 Difference]: Without dead ends: 595 [2020-09-21 11:13:36,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:13:36,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2020-09-21 11:13:36,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 551. [2020-09-21 11:13:36,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2020-09-21 11:13:36,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 649 transitions. [2020-09-21 11:13:36,235 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 649 transitions. Word has length 78 [2020-09-21 11:13:36,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:36,236 INFO L479 AbstractCegarLoop]: Abstraction has 551 states and 649 transitions. [2020-09-21 11:13:36,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:13:36,236 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 649 transitions. [2020-09-21 11:13:36,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 11:13:36,238 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:36,238 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] [2020-09-21 11:13:36,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:13:36,239 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:36,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:36,239 INFO L82 PathProgramCache]: Analyzing trace with hash -486039022, now seen corresponding path program 1 times [2020-09-21 11:13:36,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:36,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140853833] [2020-09-21 11:13:36,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,289 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,289 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,290 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,290 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:13:36,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:36,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:36,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-21 11:13:36,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:36,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,549 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:36,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,560 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,560 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,560 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,561 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:36,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:36,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:36,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:36,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:36,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,588 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,588 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,589 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,589 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:36,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:36,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:36,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:36,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:36,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,593 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,593 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,593 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,593 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:36,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:36,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:36,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:36,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,598 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,598 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,598 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,598 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:36,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:36,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:36,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:36,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:36,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,605 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,605 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,605 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,606 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:36,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:36,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:36,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:36,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:36,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,618 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,618 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,618 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,619 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:36,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:36,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:36,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:36,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:36,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:13:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,649 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,649 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,650 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,650 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:36,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:36,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:36,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:13:36,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:36,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:36,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,668 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,669 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,669 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,669 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:36,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:13:36,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:36,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:13:36,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:36,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:36,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,729 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,730 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,730 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,731 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:36,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:36,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:13:36,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:36,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:36,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:36,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,779 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,780 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,782 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,783 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:36,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:36,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:36,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:13:36,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:36,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:36,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 11:13:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,789 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,789 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,789 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,789 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:36,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:36,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:36,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:36,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:36,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:13:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,794 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,795 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,795 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:36,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:36,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:36,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:36,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:36,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:36,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:36,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140853833] [2020-09-21 11:13:36,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:36,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:13:36,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883154634] [2020-09-21 11:13:36,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:13:36,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:36,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:13:36,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:13:36,820 INFO L87 Difference]: Start difference. First operand 551 states and 649 transitions. Second operand 8 states. [2020-09-21 11:13:37,924 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:38,269 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:38,575 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:39,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:39,708 INFO L93 Difference]: Finished difference Result 991 states and 1211 transitions. [2020-09-21 11:13:39,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:13:39,711 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-09-21 11:13:39,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:39,717 INFO L225 Difference]: With dead ends: 991 [2020-09-21 11:13:39,717 INFO L226 Difference]: Without dead ends: 582 [2020-09-21 11:13:39,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:39,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2020-09-21 11:13:39,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 543. [2020-09-21 11:13:39,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2020-09-21 11:13:39,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 638 transitions. [2020-09-21 11:13:39,843 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 638 transitions. Word has length 78 [2020-09-21 11:13:39,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:39,843 INFO L479 AbstractCegarLoop]: Abstraction has 543 states and 638 transitions. [2020-09-21 11:13:39,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:13:39,843 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 638 transitions. [2020-09-21 11:13:39,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-21 11:13:39,846 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:39,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:39,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:13:39,847 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:39,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:39,847 INFO L82 PathProgramCache]: Analyzing trace with hash 689748532, now seen corresponding path program 1 times [2020-09-21 11:13:39,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:39,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1721626773] [2020-09-21 11:13:39,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,320 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,321 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,321 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,321 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-21 11:13:40,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 422 [2020-09-21 11:13:40,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:13:40,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:40,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-21 11:13:40,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,623 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:40,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,690 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,690 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,690 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,690 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:40,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 11:13:40,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:40,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:40,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,725 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,725 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,725 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,726 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:40,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:40,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:40,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:40,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,731 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,732 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,732 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,732 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:40,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:40,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:40,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:40,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,738 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,738 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:40,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:40,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:40,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,745 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,745 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,745 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,745 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:40,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:40,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:40,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,765 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,765 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,765 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,766 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:40,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:40,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:40,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:13:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,796 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,797 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,797 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,797 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-21 11:13:40,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:13:40,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:13:40,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-21 11:13:40,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:13:40,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:40,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,849 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,849 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,849 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,849 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:40,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:40,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:40,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,855 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,855 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,855 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,856 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:40,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:40,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:40,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:40,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,870 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,871 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,871 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,871 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 11:13:40,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:13:40,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:13:40,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:13:40,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,906 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,907 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,907 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,907 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:13:40,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:40,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:40,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:13:40,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,939 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,939 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,939 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,940 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:40,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:40,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:13:40,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:40,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-21 11:13:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,960 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,960 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,961 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,961 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:40,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:40,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:40,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:40,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 11:13:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,965 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,965 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,966 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,966 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:40,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:40,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:40,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:40,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:40,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1721626773] [2020-09-21 11:13:40,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:40,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 11:13:40,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317633890] [2020-09-21 11:13:40,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:13:40,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:40,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:13:40,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:40,985 INFO L87 Difference]: Start difference. First operand 543 states and 638 transitions. Second operand 12 states. [2020-09-21 11:13:41,605 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:42,442 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:43,408 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:43,791 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:44,142 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:44,440 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:44,782 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:45,119 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:45,434 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:45,751 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:46,118 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:46,496 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:48,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:48,308 INFO L93 Difference]: Finished difference Result 1515 states and 1876 transitions. [2020-09-21 11:13:48,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-21 11:13:48,308 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2020-09-21 11:13:48,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:48,315 INFO L225 Difference]: With dead ends: 1515 [2020-09-21 11:13:48,315 INFO L226 Difference]: Without dead ends: 996 [2020-09-21 11:13:48,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=188, Invalid=742, Unknown=0, NotChecked=0, Total=930 [2020-09-21 11:13:48,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2020-09-21 11:13:48,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 933. [2020-09-21 11:13:48,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-09-21 11:13:48,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1078 transitions. [2020-09-21 11:13:48,472 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1078 transitions. Word has length 90 [2020-09-21 11:13:48,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:48,473 INFO L479 AbstractCegarLoop]: Abstraction has 933 states and 1078 transitions. [2020-09-21 11:13:48,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:13:48,473 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1078 transitions. [2020-09-21 11:13:48,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-21 11:13:48,475 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:48,475 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] [2020-09-21 11:13:48,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:13:48,476 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:48,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:48,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1694745200, now seen corresponding path program 1 times [2020-09-21 11:13:48,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:48,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1737739089] [2020-09-21 11:13:48,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,526 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,527 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,527 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,527 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-09-21 11:13:48,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:48,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:48,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-21 11:13:48,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:13:48,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,808 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:48,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,824 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,824 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,824 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,824 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:48,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:48,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:48,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:48,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:48,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,857 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,857 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,857 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,857 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:48,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:48,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:48,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:48,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,861 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,861 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,861 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,861 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:48,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:48,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:48,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:48,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,865 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,865 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:48,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:48,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:48,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:48,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,869 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,869 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,869 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,870 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:48,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:48,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:48,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:48,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,882 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,882 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,882 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:48,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:48,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:48,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:48,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:13:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,896 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,897 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,897 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,897 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:48,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:48,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:48,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:48,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:13:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,917 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,918 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,918 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,918 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-21 11:13:48,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:48,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:48,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:13:48,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,931 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,931 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,931 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,932 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:48,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:48,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:48,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:13:48,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,946 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,946 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,946 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,947 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:48,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:48,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:48,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:48,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,960 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,960 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,960 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,961 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 11:13:48,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:48,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:48,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-21 11:13:48,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:48,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,968 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,968 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,969 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,969 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:13:48,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:48,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:48,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:48,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:48,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,978 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,978 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,978 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,979 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:48,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:48,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:48,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:48,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-21 11:13:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,987 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,987 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,987 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,988 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:48,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:48,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:48,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:48,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:49,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-21 11:13:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,020 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,021 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,021 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,021 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:49,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:49,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:49,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:49,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1737739089] [2020-09-21 11:13:49,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:49,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 11:13:49,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132115324] [2020-09-21 11:13:49,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:13:49,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:49,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:13:49,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:13:49,043 INFO L87 Difference]: Start difference. First operand 933 states and 1078 transitions. Second operand 10 states. [2020-09-21 11:13:50,291 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:50,883 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:51,698 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:52,036 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:52,374 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:54,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:54,108 INFO L93 Difference]: Finished difference Result 1890 states and 2349 transitions. [2020-09-21 11:13:54,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 11:13:54,109 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 94 [2020-09-21 11:13:54,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:54,116 INFO L225 Difference]: With dead ends: 1890 [2020-09-21 11:13:54,117 INFO L226 Difference]: Without dead ends: 1187 [2020-09-21 11:13:54,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=162, Invalid=390, Unknown=0, NotChecked=0, Total=552 [2020-09-21 11:13:54,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2020-09-21 11:13:54,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 921. [2020-09-21 11:13:54,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-09-21 11:13:54,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1062 transitions. [2020-09-21 11:13:54,335 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1062 transitions. Word has length 94 [2020-09-21 11:13:54,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:54,335 INFO L479 AbstractCegarLoop]: Abstraction has 921 states and 1062 transitions. [2020-09-21 11:13:54,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:13:54,336 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1062 transitions. [2020-09-21 11:13:54,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-09-21 11:13:54,339 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:54,340 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:54,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:13:54,341 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:54,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:54,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1087116067, now seen corresponding path program 1 times [2020-09-21 11:13:54,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:54,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746285752] [2020-09-21 11:13:54,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,407 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,407 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,408 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-21 11:13:54,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:54,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-21 11:13:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:54,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:54,673 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:54,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,682 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,682 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,682 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,682 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:54,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:54,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:54,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:54,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:54,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:54,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,708 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,708 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,708 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,709 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:54,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:54,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:54,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:54,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:54,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:54,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,712 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,712 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,713 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,713 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:54,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:54,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:54,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:54,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:54,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:54,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,717 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,717 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,717 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,717 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:54,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:54,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:54,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:54,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:54,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:54,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,722 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,722 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,722 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,722 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:54,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:54,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:54,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:54,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:54,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:54,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:13:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,747 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,747 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-21 11:13:54,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:54,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:54,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:13:54,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:54,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:54,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,776 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,776 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,776 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,777 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:13:54,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:54,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:54,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:13:54,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:54,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:54,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,826 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,826 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,827 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,827 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:54,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:54,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:54,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:54,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:13:54,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:54,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,873 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,873 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,873 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,874 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:54,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:54,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:54,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:54,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:54,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:54,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,881 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,881 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,882 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:13:54,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:54,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:54,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 11:13:54,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:54,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:54,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,891 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,891 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,892 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:13:54,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:54,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:54,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:54,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:54,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:54,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,898 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,899 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,899 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,899 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:54,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:54,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:54,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:54,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:54,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:54,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,906 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,907 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,907 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,907 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:54,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:54,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:54,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:54,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:54,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:54,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:13:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,917 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,917 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,918 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,918 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:13:54,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:54,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:13:54,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:54,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:54,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,925 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,925 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,926 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,926 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:54,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:54,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:54,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:54,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:54,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:54,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-09-21 11:13:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,956 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,956 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,956 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,957 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:54,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:54,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:54,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:54,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:54,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:54,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-21 11:13:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,966 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,966 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,966 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,967 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:54,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:54,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:54,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:13:54,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:54,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:54,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,972 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,972 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,972 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,972 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:54,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:54,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:54,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:54,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:54,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:54,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-09-21 11:13:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,977 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,977 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,977 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,977 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:54,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:54,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:54,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:54,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:54,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:54,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-21 11:13:54,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,985 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,985 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,985 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,985 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:54,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:54,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:54,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:54,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:54,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:55,025 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 11:13:55,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746285752] [2020-09-21 11:13:55,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:13:55,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:13:55,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502097193] [2020-09-21 11:13:55,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:13:55,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:55,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:13:55,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:13:55,029 INFO L87 Difference]: Start difference. First operand 921 states and 1062 transitions. Second operand 10 states. [2020-09-21 11:13:56,110 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:56,427 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:13:56,733 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:57,027 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:13:57,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:57,897 INFO L93 Difference]: Finished difference Result 1711 states and 2009 transitions. [2020-09-21 11:13:57,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:13:57,897 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 126 [2020-09-21 11:13:57,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:57,902 INFO L225 Difference]: With dead ends: 1711 [2020-09-21 11:13:57,903 INFO L226 Difference]: Without dead ends: 814 [2020-09-21 11:13:57,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:13:57,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2020-09-21 11:13:58,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 783. [2020-09-21 11:13:58,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2020-09-21 11:13:58,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 899 transitions. [2020-09-21 11:13:58,064 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 899 transitions. Word has length 126 [2020-09-21 11:13:58,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:58,064 INFO L479 AbstractCegarLoop]: Abstraction has 783 states and 899 transitions. [2020-09-21 11:13:58,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:13:58,065 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 899 transitions. [2020-09-21 11:13:58,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-09-21 11:13:58,067 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:58,067 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:58,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:13:58,068 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:58,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:58,068 INFO L82 PathProgramCache]: Analyzing trace with hash 942189914, now seen corresponding path program 1 times [2020-09-21 11:13:58,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:58,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2109427521] [2020-09-21 11:13:58,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,141 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,142 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,142 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,142 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-21 11:13:58,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:13:58,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:13:58,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-21 11:13:58,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-21 11:13:58,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:58,431 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:58,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,440 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,440 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,441 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,441 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:58,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:58,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:58,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:58,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:58,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:58,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,472 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,473 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,473 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:58,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:58,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:58,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:58,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:58,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:58,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,478 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,479 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,479 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,479 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:58,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:58,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:58,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:58,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:58,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:58,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,484 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,485 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,485 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,485 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:58,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:58,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:58,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:58,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:58,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:58,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,490 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,490 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,490 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,490 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:58,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:58,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:58,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:58,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:58,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:58,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,505 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,505 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,505 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,505 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:58,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:58,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:58,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:58,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:58,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:58,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:13:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,538 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,539 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,539 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-21 11:13:58,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:58,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:58,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:58,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:13:58,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:58,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,577 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,577 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,578 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,578 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:13:58,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:58,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:58,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:58,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:13:58,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:58,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,601 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,602 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,602 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,602 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:58,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:58,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:58,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:58,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:13:58,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:58,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,615 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,616 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,617 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,618 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:58,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:58,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:58,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:58,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:58,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:58,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,640 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,640 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,641 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,641 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:13:58,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:58,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:58,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:58,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 11:13:58,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:58,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:58,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,658 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,659 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,659 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,659 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:13:58,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:58,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:58,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:58,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:58,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:58,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,666 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,667 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,667 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,667 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:58,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:58,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:58,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:58,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:58,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:58,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,674 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,674 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,675 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,675 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:58,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:58,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:58,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:58,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:58,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:58,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:13:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,687 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,687 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,687 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,688 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:13:58,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:58,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:58,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:58,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:13:58,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:58,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,693 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,693 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,694 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,694 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:58,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:58,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:58,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:58,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:58,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:58,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 11:13:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,708 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,709 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,709 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,709 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:58,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:58,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:58,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:58,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:58,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:58,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-21 11:13:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,740 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,740 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,741 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,741 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:58,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:58,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:58,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:58,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:13:58,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:58,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,747 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,747 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:58,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:58,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:58,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:58,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:58,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:58,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-21 11:13:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,754 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,755 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,755 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,755 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:58,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:58,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:58,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:58,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:58,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:58,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-21 11:13:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:58,782 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:58,782 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:58,782 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:58,783 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:58,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:58,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:58,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:58,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:58,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:58,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:58,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:58,823 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 11:13:58,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2109427521] [2020-09-21 11:13:58,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:13:58,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 11:13:58,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243799247] [2020-09-21 11:13:58,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:13:58,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:58,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:13:58,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:58,827 INFO L87 Difference]: Start difference. First operand 783 states and 899 transitions. Second operand 12 states. [2020-09-21 11:13:59,481 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:00,152 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186