/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:03:57,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:03:57,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:03:57,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:03:57,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:03:57,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:03:57,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:03:57,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:03:57,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:03:57,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:03:57,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:03:57,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:03:57,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:03:57,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:03:57,626 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:03:57,628 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:03:57,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:03:57,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:03:57,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:03:57,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:03:57,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:03:57,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:03:57,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:03:57,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:03:57,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:03:57,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:03:57,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:03:57,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:03:57,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:03:57,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:03:57,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:03:57,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:03:57,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:03:57,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:03:57,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:03:57,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:03:57,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:03:57,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:03:57,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:03:57,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:03:57,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:03:57,666 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 [2020-09-24 19:03:57,714 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:03:57,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:03:57,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:03:57,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:03:57,717 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:03:57,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:03:57,718 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:03:57,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:03:57,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:03:57,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:03:57,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:03:57,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:03:57,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:03:57,720 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:03:57,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:03:57,721 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:03:57,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:03:57,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:03:57,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:03:57,722 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:03:57,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:03:57,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:03:57,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:03:57,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:03:57,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:03:57,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:03:57,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:03:57,723 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:03:57,723 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:03:57,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:03:58,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:03:58,192 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:03:58,197 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:03:58,199 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:03:58,199 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:03:58,201 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-09-24 19:03:58,278 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5426d9b34/fd9e078411de4c37bc0770ecede3f0f5/FLAG0375da88f [2020-09-24 19:03:58,966 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:03:58,967 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-09-24 19:03:58,991 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5426d9b34/fd9e078411de4c37bc0770ecede3f0f5/FLAG0375da88f [2020-09-24 19:03:59,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5426d9b34/fd9e078411de4c37bc0770ecede3f0f5 [2020-09-24 19:03:59,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:03:59,206 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:03:59,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:03:59,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:03:59,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:03:59,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:03:59" (1/1) ... [2020-09-24 19:03:59,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ed4b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:59, skipping insertion in model container [2020-09-24 19:03:59,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:03:59" (1/1) ... [2020-09-24 19:03:59,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:03:59,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:03:59,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:03:59,782 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:03:59,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:03:59,941 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:03:59,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:59 WrapperNode [2020-09-24 19:03:59,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:03:59,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:03:59,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:03:59,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:03:59,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:59" (1/1) ... [2020-09-24 19:03:59,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:59" (1/1) ... [2020-09-24 19:03:59,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:59" (1/1) ... [2020-09-24 19:03:59,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:59" (1/1) ... [2020-09-24 19:04:00,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:59" (1/1) ... [2020-09-24 19:04:00,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:59" (1/1) ... [2020-09-24 19:04:00,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:59" (1/1) ... [2020-09-24 19:04:00,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:04:00,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:04:00,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:04:00,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:04:00,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:59" (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 [2020-09-24 19:04:00,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:04:00,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:04:00,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:04:00,134 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:04:00,134 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:04:00,134 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:04:00,134 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:04:00,134 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:04:00,135 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:04:00,135 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:04:00,135 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:04:00,135 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 19:04:00,135 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:04:00,135 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:04:00,136 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:04:00,136 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:04:00,136 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:04:00,136 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:04:00,137 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:04:00,137 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 19:04:00,137 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 19:04:00,137 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:04:00,137 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:04:00,138 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:04:00,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:04:00,138 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:04:00,138 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:04:00,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:04:00,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 19:04:00,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:04:00,139 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:04:00,139 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:04:00,139 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:04:00,139 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:04:00,139 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:04:00,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 19:04:00,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:04:00,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:04:00,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:04:00,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:04:00,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:04:00,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:04:00,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:04:00,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:04:00,141 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:04:00,141 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:04:00,141 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:04:00,142 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:04:00,142 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:04:00,142 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:04:00,142 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:04:00,142 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 19:04:00,142 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:04:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:04:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:04:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:04:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:04:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:04:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:04:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 19:04:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:04:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:04:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:04:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:04:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 19:04:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:04:00,145 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:04:00,145 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:04:00,145 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:04:00,145 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 19:04:00,145 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 19:04:00,145 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:04:00,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:04:00,146 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:04:00,146 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:04:00,146 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:04:00,146 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:04:00,146 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:04:00,147 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:04:00,147 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:04:00,147 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:04:00,147 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:04:00,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:04:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:04:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:04:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:04:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:04:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:04:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:04:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:04:00,149 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:04:00,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:04:00,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:04:00,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:04:00,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:04:00,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:04:00,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:04:00,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:04:01,367 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:04:01,368 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:04:01,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:04:01 BoogieIcfgContainer [2020-09-24 19:04:01,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:04:01,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:04:01,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:04:01,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:04:01,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:03:59" (1/3) ... [2020-09-24 19:04:01,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b695699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:04:01, skipping insertion in model container [2020-09-24 19:04:01,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:59" (2/3) ... [2020-09-24 19:04:01,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b695699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:04:01, skipping insertion in model container [2020-09-24 19:04:01,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:04:01" (3/3) ... [2020-09-24 19:04:01,387 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2020-09-24 19:04:01,399 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:04:01,411 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:04:01,434 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:04:01,470 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:04:01,470 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:04:01,470 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:04:01,470 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:04:01,470 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:04:01,471 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:04:01,471 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:04:01,471 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:04:01,501 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2020-09-24 19:04:01,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 19:04:01,521 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:04:01,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:04:01,523 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:04:01,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:04:01,531 INFO L82 PathProgramCache]: Analyzing trace with hash 2046718669, now seen corresponding path program 1 times [2020-09-24 19:04:01,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:04:01,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023784563] [2020-09-24 19:04:01,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:04:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:02,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:02,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:02,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:02,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 19:04:02,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:04:02,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-09-24 19:04:02,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:02,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:02,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 19:04:02,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:02,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:04:03,374 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:04:03,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:04:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:03,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:03,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:03,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:04:03,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:03,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-24 19:04:03,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:03,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:03,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:03,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:03,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:03,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:04:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:03,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:03,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:03,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:03,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:03,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:04:03,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:03,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:03,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:03,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:03,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:03,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:04:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:03,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:03,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:03,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:03,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:03,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:03,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:03,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:03,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:03,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:03,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:03,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:04:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:03,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:03,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:03,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:03,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:03,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:04:03,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:03,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:03,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:03,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:03,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:03,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:04:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:03,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:03,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:03,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:03,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:03,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:03,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:03,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:03,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:03,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:03,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:03,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:04:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:03,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:03,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:03,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:03,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:03,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:03,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:03,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:03,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:03,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:03,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:03,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:04:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:03,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:03,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:03,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:03,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:03,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:03,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:03,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:03,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:03,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:03,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:03,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:04:03,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1023784563] [2020-09-24 19:04:03,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:04:03,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:04:03,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284199222] [2020-09-24 19:04:03,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:04:03,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:04:03,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:04:03,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:04:03,756 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 3 states. [2020-09-24 19:04:05,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:04:05,437 INFO L93 Difference]: Finished difference Result 545 states and 652 transitions. [2020-09-24 19:04:05,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:04:05,440 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 19:04:05,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:04:05,461 INFO L225 Difference]: With dead ends: 545 [2020-09-24 19:04:05,461 INFO L226 Difference]: Without dead ends: 332 [2020-09-24 19:04:05,468 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 [2020-09-24 19:04:05,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-09-24 19:04:05,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 287. [2020-09-24 19:04:05,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-09-24 19:04:05,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 316 transitions. [2020-09-24 19:04:05,587 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 316 transitions. Word has length 142 [2020-09-24 19:04:05,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:04:05,588 INFO L479 AbstractCegarLoop]: Abstraction has 287 states and 316 transitions. [2020-09-24 19:04:05,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:04:05,588 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 316 transitions. [2020-09-24 19:04:05,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 19:04:05,593 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:04:05,594 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:04:05,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:04:05,594 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:04:05,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:04:05,595 INFO L82 PathProgramCache]: Analyzing trace with hash 69871948, now seen corresponding path program 1 times [2020-09-24 19:04:05,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:04:05,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [318076871] [2020-09-24 19:04:05,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:04:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:05,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:05,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:06,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:06,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 19:04:06,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:04:06,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:04:06,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:06,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:06,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 19:04:06,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:04:06,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:06,963 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:04:06,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:04:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:06,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:07,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:07,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:04:07,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:07,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 19:04:07,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:07,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:07,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:07,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:07,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:07,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:04:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:07,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:07,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:07,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:07,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:07,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:07,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:07,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:07,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:07,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:07,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:07,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:04:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:07,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:07,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:07,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:07,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:07,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:07,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:07,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:07,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:07,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:07,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:07,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:04:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:07,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:07,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:07,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:07,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:07,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:04:07,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:07,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:07,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:07,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:07,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:07,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:04:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:07,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:07,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:07,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:07,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:07,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:07,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:07,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:07,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:07,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:07,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:07,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:04:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:07,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:07,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:07,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:07,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:07,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:07,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:07,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:07,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:07,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:07,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:07,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:04:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:07,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:07,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:07,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:07,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:07,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:07,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:07,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:07,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:07,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:07,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:07,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:04:07,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [318076871] [2020-09-24 19:04:07,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:04:07,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:04:07,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152654986] [2020-09-24 19:04:07,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:04:07,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:04:07,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:04:07,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:04:07,201 INFO L87 Difference]: Start difference. First operand 287 states and 316 transitions. Second operand 4 states. [2020-09-24 19:04:07,841 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:04:09,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:04:09,043 INFO L93 Difference]: Finished difference Result 456 states and 519 transitions. [2020-09-24 19:04:09,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:04:09,044 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 19:04:09,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:04:09,049 INFO L225 Difference]: With dead ends: 456 [2020-09-24 19:04:09,049 INFO L226 Difference]: Without dead ends: 315 [2020-09-24 19:04:09,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:04:09,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-24 19:04:09,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 277. [2020-09-24 19:04:09,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-24 19:04:09,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 303 transitions. [2020-09-24 19:04:09,098 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 303 transitions. Word has length 143 [2020-09-24 19:04:09,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:04:09,099 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 303 transitions. [2020-09-24 19:04:09,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:04:09,099 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 303 transitions. [2020-09-24 19:04:09,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-24 19:04:09,102 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:04:09,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:04:09,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:04:09,103 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:04:09,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:04:09,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1405476844, now seen corresponding path program 1 times [2020-09-24 19:04:09,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:04:09,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [922371718] [2020-09-24 19:04:09,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:04:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:09,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:09,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:10,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:10,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 19:04:10,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:04:10,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1020 [2020-09-24 19:04:10,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:10,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:04:10,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 19:04:10,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-24 19:04:10,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:10,497 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:04:10,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:04:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:10,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:10,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:10,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:04:10,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:10,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-09-24 19:04:10,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:10,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:10,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:10,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 19:04:10,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:10,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:04:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:10,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:10,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:10,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:10,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:10,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:04:10,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:10,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:10,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:10,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:04:10,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:10,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:04:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:10,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:10,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:10,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:10,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:10,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:04:10,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:10,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:10,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:10,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:04:10,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:10,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:04:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:10,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:10,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:10,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:10,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:10,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:04:10,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:10,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:10,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:10,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:04:10,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:10,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:04:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:10,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:11,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:11,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:11,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:11,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:04:11,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:11,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:11,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:11,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:04:11,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:11,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:04:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:11,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:11,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:11,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:11,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:11,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:11,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:11,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:11,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:11,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:11,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:11,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 19:04:11,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:11,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:11,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:11,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:11,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:11,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:11,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:11,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:11,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:04:11,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [922371718] [2020-09-24 19:04:11,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:04:11,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:04:11,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319138270] [2020-09-24 19:04:11,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:04:11,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:04:11,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:04:11,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:04:11,081 INFO L87 Difference]: Start difference. First operand 277 states and 303 transitions. Second operand 4 states. [2020-09-24 19:04:11,683 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:04:13,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:04:13,821 INFO L93 Difference]: Finished difference Result 663 states and 766 transitions. [2020-09-24 19:04:13,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:04:13,822 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2020-09-24 19:04:13,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:04:13,828 INFO L225 Difference]: With dead ends: 663 [2020-09-24 19:04:13,829 INFO L226 Difference]: Without dead ends: 496 [2020-09-24 19:04:13,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:04:13,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-09-24 19:04:13,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 438. [2020-09-24 19:04:13,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2020-09-24 19:04:13,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 491 transitions. [2020-09-24 19:04:13,914 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 491 transitions. Word has length 152 [2020-09-24 19:04:13,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:04:13,915 INFO L479 AbstractCegarLoop]: Abstraction has 438 states and 491 transitions. [2020-09-24 19:04:13,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:04:13,915 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 491 transitions. [2020-09-24 19:04:13,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 19:04:13,919 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:04:13,919 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:04:13,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:04:13,919 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:04:13,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:04:13,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1864711332, now seen corresponding path program 1 times [2020-09-24 19:04:13,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:04:13,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1119204286] [2020-09-24 19:04:13,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:04:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:14,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:14,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:14,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:15,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:15,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 19:04:15,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:04:15,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1076 [2020-09-24 19:04:15,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:15,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:04:15,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-24 19:04:15,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 19:04:15,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:15,394 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:04:15,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:04:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:15,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:15,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:15,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:04:15,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:15,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 19:04:15,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:15,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:15,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:15,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:15,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:15,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:04:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:15,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:15,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:15,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:15,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:15,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:15,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:15,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:15,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:15,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:15,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:15,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:04:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:15,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:15,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:15,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:15,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:15,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:15,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:15,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:15,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:15,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:15,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:15,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:04:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:15,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:15,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:15,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:15,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:15,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:04:15,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:15,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:15,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:15,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:15,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:15,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:04:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:15,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:15,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:15,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:15,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:15,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:04:15,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:15,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:15,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:15,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:15,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:15,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:04:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:15,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:15,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:15,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:04:15,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:15,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:15,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:15,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:15,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:15,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:15,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:15,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 19:04:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:15,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:15,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:15,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:15,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:15,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:15,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:15,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:15,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:15,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:04:15,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:15,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 19:04:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:15,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:15,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:15,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:15,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:15,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:04:15,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:15,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:04:15,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:15,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:04:15,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:15,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:04:15,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1119204286] [2020-09-24 19:04:15,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:04:15,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:04:15,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403366529] [2020-09-24 19:04:15,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:04:15,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:04:15,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:04:15,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:04:15,695 INFO L87 Difference]: Start difference. First operand 438 states and 491 transitions. Second operand 9 states. [2020-09-24 19:04:16,170 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:04:17,811 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-24 19:04:18,447 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 191 [2020-09-24 19:04:18,786 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:04:19,128 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:04:19,459 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:04:20,153 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:04:20,529 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-24 19:04:20,877 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:04:21,292 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:04:22,178 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-24 19:04:23,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:04:23,254 INFO L93 Difference]: Finished difference Result 1045 states and 1263 transitions. [2020-09-24 19:04:23,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 19:04:23,254 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-24 19:04:23,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:04:23,261 INFO L225 Difference]: With dead ends: 1045 [2020-09-24 19:04:23,261 INFO L226 Difference]: Without dead ends: 717 [2020-09-24 19:04:23,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2020-09-24 19:04:23,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2020-09-24 19:04:23,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 620. [2020-09-24 19:04:23,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2020-09-24 19:04:23,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 703 transitions. [2020-09-24 19:04:23,368 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 703 transitions. Word has length 161 [2020-09-24 19:04:23,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:04:23,369 INFO L479 AbstractCegarLoop]: Abstraction has 620 states and 703 transitions. [2020-09-24 19:04:23,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:04:23,369 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 703 transitions. [2020-09-24 19:04:23,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 19:04:23,372 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:04:23,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:04:23,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:04:23,373 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:04:23,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:04:23,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1051506646, now seen corresponding path program 1 times [2020-09-24 19:04:23,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:04:23,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645428648] [2020-09-24 19:04:23,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:04:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:23,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:23,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:24,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:24,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 19:04:24,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:04:24,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1043 [2020-09-24 19:04:24,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:24,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:04:24,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-09-24 19:04:24,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:04:24,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:24,736 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:04:24,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:04:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:24,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:24,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:24,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:04:24,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:24,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 19:04:24,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:24,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:24,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:24,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:24,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:24,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:04:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:24,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:24,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:24,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:24,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:24,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:24,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:24,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:24,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:24,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:24,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:24,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:04:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:24,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:24,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:24,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:24,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:24,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:24,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:24,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:24,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:24,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:24,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:24,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:04:24,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:24,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:24,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:24,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:24,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:24,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:04:24,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:24,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:24,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:24,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:24,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:24,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:04:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:24,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:24,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:24,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:24,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:24,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:24,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:24,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:24,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:24,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:24,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:24,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 19:04:24,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:24,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:24,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:24,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 19:04:24,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:24,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 19:04:24,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:24,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:04:24,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 19:04:24,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:04:24,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:24,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:25,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:25,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:25,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:04:25,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:25,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 19:04:25,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:25,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:04:25,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 19:04:25,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:04:25,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:25,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:25,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:25,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:25,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:04:25,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:25,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 19:04:25,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:25,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:04:25,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:04:25,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:04:25,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:25,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:25,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:25,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:25,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:04:25,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:25,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 19:04:25,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:25,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:04:25,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:04:25,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:04:25,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:25,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:04:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:25,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:25,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:25,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:04:25,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:25,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:04:25,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:25,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:04:25,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:25,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:04:25,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:25,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:04:25,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:25,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:25,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:25,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:04:25,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:25,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:25,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:25,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:25,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:04:25,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:25,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:25,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 19:04:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:25,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:25,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:25,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:25,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:25,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:25,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:25,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:25,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:25,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:25,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:25,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 19:04:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:25,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:25,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:25,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:25,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:25,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:25,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:25,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:25,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:25,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:25,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:25,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:04:25,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645428648] [2020-09-24 19:04:25,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:04:25,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 19:04:25,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145972764] [2020-09-24 19:04:25,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:04:25,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:04:25,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:04:25,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:04:25,292 INFO L87 Difference]: Start difference. First operand 620 states and 703 transitions. Second operand 8 states. [2020-09-24 19:04:26,504 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:04:26,821 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:04:27,185 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:04:27,504 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:04:27,803 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:04:28,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:04:28,998 INFO L93 Difference]: Finished difference Result 1262 states and 1529 transitions. [2020-09-24 19:04:28,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 19:04:28,999 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 195 [2020-09-24 19:04:28,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:04:29,008 INFO L225 Difference]: With dead ends: 1262 [2020-09-24 19:04:29,008 INFO L226 Difference]: Without dead ends: 752 [2020-09-24 19:04:29,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-24 19:04:29,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2020-09-24 19:04:29,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 635. [2020-09-24 19:04:29,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2020-09-24 19:04:29,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 719 transitions. [2020-09-24 19:04:29,175 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 719 transitions. Word has length 195 [2020-09-24 19:04:29,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:04:29,176 INFO L479 AbstractCegarLoop]: Abstraction has 635 states and 719 transitions. [2020-09-24 19:04:29,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:04:29,176 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 719 transitions. [2020-09-24 19:04:29,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 19:04:29,184 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:04:29,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:04:29,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:04:29,185 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:04:29,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:04:29,186 INFO L82 PathProgramCache]: Analyzing trace with hash 637875254, now seen corresponding path program 1 times [2020-09-24 19:04:29,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:04:29,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744939856] [2020-09-24 19:04:29,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:04:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:29,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:29,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 19:04:30,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:04:30,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1049 [2020-09-24 19:04:30,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:04:30,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-09-24 19:04:30,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:04:30,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:30,615 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:04:30,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:04:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:04:30,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 19:04:30,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:30,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:30,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:30,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:04:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:30,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:30,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:30,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:30,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:30,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:04:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:30,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:30,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:30,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:30,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:30,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:04:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:30,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:04:30,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:30,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:30,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:30,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:04:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:30,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:04:30,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:30,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:30,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:30,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 19:04:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 19:04:30,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 19:04:30,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:04:30,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:04:30,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:04:30,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:30,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:30,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:04:30,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:30,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 19:04:30,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:30,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:04:30,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 19:04:30,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:04:30,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:30,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:30,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:31,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:31,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:04:31,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:31,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 19:04:31,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:31,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:04:31,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:04:31,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:04:31,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:31,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:31,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:31,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:31,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:04:31,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:31,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 19:04:31,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:31,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:04:31,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:31,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:04:31,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:31,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:04:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:31,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:31,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:31,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:04:31,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:31,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:04:31,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:31,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:31,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:31,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:31,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:31,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:04:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:31,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:31,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:31,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:04:31,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:31,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:31,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:31,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:31,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:04:31,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:31,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:31,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 19:04:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:31,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:31,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:31,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:31,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:31,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:31,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:31,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:31,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:31,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:31,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:31,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 19:04:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:31,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:31,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:31,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:31,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:31,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:04:31,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:31,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:31,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:31,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:31,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:31,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:04:31,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744939856] [2020-09-24 19:04:31,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:04:31,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:04:31,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50493347] [2020-09-24 19:04:31,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:04:31,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:04:31,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:04:31,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:04:31,277 INFO L87 Difference]: Start difference. First operand 635 states and 719 transitions. Second operand 9 states. [2020-09-24 19:04:32,630 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:04:32,989 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:04:33,323 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:04:33,632 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:04:33,963 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:04:34,262 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:04:35,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:04:35,318 INFO L93 Difference]: Finished difference Result 1283 states and 1520 transitions. [2020-09-24 19:04:35,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 19:04:35,319 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 195 [2020-09-24 19:04:35,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:04:35,324 INFO L225 Difference]: With dead ends: 1283 [2020-09-24 19:04:35,325 INFO L226 Difference]: Without dead ends: 758 [2020-09-24 19:04:35,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:04:35,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2020-09-24 19:04:35,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 651. [2020-09-24 19:04:35,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2020-09-24 19:04:35,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 735 transitions. [2020-09-24 19:04:35,400 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 735 transitions. Word has length 195 [2020-09-24 19:04:35,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:04:35,401 INFO L479 AbstractCegarLoop]: Abstraction has 651 states and 735 transitions. [2020-09-24 19:04:35,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:04:35,401 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 735 transitions. [2020-09-24 19:04:35,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 19:04:35,404 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:04:35,404 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:04:35,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:04:35,405 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:04:35,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:04:35,405 INFO L82 PathProgramCache]: Analyzing trace with hash 981988537, now seen corresponding path program 1 times [2020-09-24 19:04:35,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:04:35,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90931882] [2020-09-24 19:04:35,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:04:35,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:35,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:36,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:36,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:36,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 19:04:36,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:04:36,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1037 [2020-09-24 19:04:36,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:36,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:04:36,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 19:04:36,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-24 19:04:36,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:36,801 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:04:36,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:04:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:36,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:37,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:37,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:04:37,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:37,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-24 19:04:37,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:37,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:37,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:37,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 19:04:37,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:37,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:04:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:37,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:37,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:37,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:37,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:37,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:04:37,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:37,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:37,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:37,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:04:37,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:37,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:04:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:37,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:37,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:37,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:37,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:37,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:04:37,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:37,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:37,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:37,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:04:37,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:37,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:04:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:37,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:37,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:37,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:37,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:37,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:04:37,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:04:37,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:37,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:04:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:37,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:37,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:37,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:37,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:37,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:37,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:04:37,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:37,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 19:04:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:37,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:37,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:37,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 19:04:37,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:37,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 19:04:37,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:37,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:37,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 19:04:37,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 19:04:37,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:37,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:37,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:37,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:37,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:04:37,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:37,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 19:04:37,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:37,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:37,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:37,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 19:04:37,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:37,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:37,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:37,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:37,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:04:37,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:37,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 19:04:37,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:37,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:37,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:37,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:04:37,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:37,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:37,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:37,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:37,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:04:37,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:37,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:04:37,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:37,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:37,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:37,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:04:37,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:37,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:04:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:37,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:37,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:37,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:04:37,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:37,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:04:37,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:37,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:37,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:37,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:04:37,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:37,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:04:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:37,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:37,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:37,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:04:37,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:37,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:04:37,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:37,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:37,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:37,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:04:37,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:37,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 19:04:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:37,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:37,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:37,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:37,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:37,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:37,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:37,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:37,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:37,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:37,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:37,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 19:04:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:37,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:37,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:37,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:37,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:37,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:04:37,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:37,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:37,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:37,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:37,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:37,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:04:37,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [90931882] [2020-09-24 19:04:37,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:04:37,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:04:37,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652802257] [2020-09-24 19:04:37,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:04:37,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:04:37,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:04:37,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:04:37,610 INFO L87 Difference]: Start difference. First operand 651 states and 735 transitions. Second operand 6 states. [2020-09-24 19:04:38,121 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:04:38,657 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:04:41,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:04:41,427 INFO L93 Difference]: Finished difference Result 1839 states and 2218 transitions. [2020-09-24 19:04:41,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 19:04:41,428 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2020-09-24 19:04:41,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:04:41,437 INFO L225 Difference]: With dead ends: 1839 [2020-09-24 19:04:41,437 INFO L226 Difference]: Without dead ends: 1298 [2020-09-24 19:04:41,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:04:41,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2020-09-24 19:04:41,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1216. [2020-09-24 19:04:41,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1216 states. [2020-09-24 19:04:41,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1411 transitions. [2020-09-24 19:04:41,610 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1411 transitions. Word has length 195 [2020-09-24 19:04:41,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:04:41,611 INFO L479 AbstractCegarLoop]: Abstraction has 1216 states and 1411 transitions. [2020-09-24 19:04:41,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:04:41,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1411 transitions. [2020-09-24 19:04:41,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 19:04:41,620 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:04:41,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:04:41,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:04:41,621 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:04:41,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:04:41,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1669043538, now seen corresponding path program 1 times [2020-09-24 19:04:41,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:04:41,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773291519] [2020-09-24 19:04:41,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:04:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:41,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:42,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:42,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-24 19:04:42,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:42,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1018 [2020-09-24 19:04:42,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:42,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:04:42,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 19:04:42,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-24 19:04:42,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:43,013 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:04:43,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:04:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:04:43,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-24 19:04:43,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:43,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 19:04:43,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:43,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:04:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:43,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:04:43,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:43,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:04:43,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:43,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:04:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:43,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:43,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:43,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:04:43,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:43,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:04:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:43,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:04:43,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:43,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:04:43,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:43,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:04:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:04:43,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:43,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:43,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:04:43,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:43,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 19:04:43,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:04:43,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:04:43,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:43,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:04:43,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:43,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:04:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 19:04:43,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 19:04:43,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:04:43,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 19:04:43,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:43,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:04:43,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:04:43,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:43,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:43,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:43,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:04:43,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:04:43,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:43,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:43,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:43,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:04:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:04:43,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:04:43,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:43,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:43,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:43,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:04:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:04:43,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:04:43,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:43,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:43,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:43,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:04:43,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:04:43,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:43,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:43,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:43,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:43,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 19:04:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:43,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:04:43,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:04:43,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:04:43,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:04:43,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:04:43,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 19:04:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:04:43,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:04:43,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:04:43,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:04:43,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:04:43,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:04:43,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:04:43,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:04:43,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:04:43,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:04:43,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:04:43,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:04:43,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773291519] [2020-09-24 19:04:43,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:04:43,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:04:43,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165550168] [2020-09-24 19:04:43,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:04:43,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:04:43,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:04:43,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:04:43,683 INFO L87 Difference]: Start difference. First operand 1216 states and 1411 transitions. Second operand 10 states. [2020-09-24 19:04:44,223 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:04:45,416 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:04:45,759 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:04:46,140 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:04:46,457 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:04:46,776 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:04:47,096 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:04:47,401 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:04:47,876 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187