/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --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_spec2_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:33:27,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:33:27,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:33:27,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:33:27,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:33:27,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:33:27,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:33:27,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:33:27,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:33:27,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:33:27,532 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:33:27,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:33:27,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:33:27,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:33:27,538 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:33:27,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:33:27,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:33:27,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:33:27,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:33:27,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:33:27,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:33:27,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:33:27,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:33:27,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:33:27,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:33:27,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:33:27,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:33:27,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:33:27,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:33:27,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:33:27,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:33:27,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:33:27,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:33:27,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:33:27,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:33:27,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:33:27,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:33:27,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:33:27,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:33:27,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:33:27,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:33:27,584 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 23:33:27,610 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:33:27,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:33:27,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:33:27,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:33:27,612 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:33:27,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:33:27,613 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:33:27,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:33:27,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:33:27,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:33:27,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:33:27,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:33:27,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:33:27,614 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:33:27,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:33:27,614 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:33:27,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:33:27,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:33:27,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:33:27,615 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:33:27,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:33:27,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:33:27,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:33:27,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:33:27,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:33:27,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:33:27,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:33:27,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:33:27,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:33:27,617 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-09-24 23:33:28,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:33:28,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:33:28,103 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:33:28,105 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:33:28,107 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:33:28,108 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product39.cil.c [2020-09-24 23:33:28,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8434d23c/bbba39dea26d4339b489fbeac73b8ba4/FLAG5d8968437 [2020-09-24 23:33:28,828 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:33:28,829 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product39.cil.c [2020-09-24 23:33:28,847 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8434d23c/bbba39dea26d4339b489fbeac73b8ba4/FLAG5d8968437 [2020-09-24 23:33:29,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8434d23c/bbba39dea26d4339b489fbeac73b8ba4 [2020-09-24 23:33:29,124 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:33:29,130 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:33:29,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:33:29,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:33:29,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:33:29,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:33:29" (1/1) ... [2020-09-24 23:33:29,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:29, skipping insertion in model container [2020-09-24 23:33:29,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:33:29" (1/1) ... [2020-09-24 23:33:29,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:33:29,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:33:29,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:33:29,877 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:33:29,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:33:29,995 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:33:29,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:29 WrapperNode [2020-09-24 23:33:29,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:33:29,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:33:29,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:33:29,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:33:30,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:29" (1/1) ... [2020-09-24 23:33:30,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:29" (1/1) ... [2020-09-24 23:33:30,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:29" (1/1) ... [2020-09-24 23:33:30,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:29" (1/1) ... [2020-09-24 23:33:30,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:29" (1/1) ... [2020-09-24 23:33:30,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:29" (1/1) ... [2020-09-24 23:33:30,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:29" (1/1) ... [2020-09-24 23:33:30,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:33:30,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:33:30,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:33:30,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:33:30,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:29" (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 23:33:30,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:33:30,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:33:30,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:33:30,210 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:33:30,210 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:33:30,211 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:33:30,211 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:33:30,212 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:33:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:33:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:33:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:33:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:33:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:33:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:33:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:33:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 23:33:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 23:33:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:33:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:33:30,216 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:33:30,216 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:33:30,216 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:33:30,216 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:33:30,217 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:33:30,217 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:33:30,217 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:33:30,218 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:33:30,218 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:33:30,218 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:33:30,218 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:33:30,218 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:33:30,218 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:33:30,218 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:33:30,219 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:33:30,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:33:30,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:33:30,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:33:30,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:33:30,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:33:30,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:33:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:33:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:33:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:33:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:33:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:33:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:33:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:33:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:33:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:33:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:33:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:33:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:33:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:33:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:33:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:33:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:33:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 23:33:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:33:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:33:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:33:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:33:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:33:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:33:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:33:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:33:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 23:33:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:33:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:33:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:33:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:33:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:33:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:33:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:33:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:33:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:33:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:33:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:33:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:33:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:33:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:33:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:33:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:33:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:33:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:33:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:33:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:33:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:33:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:33:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:33:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:33:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:33:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:33:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:33:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:33:31,479 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:33:31,480 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:33:31,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:33:31 BoogieIcfgContainer [2020-09-24 23:33:31,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:33:31,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:33:31,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:33:31,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:33:31,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:33:29" (1/3) ... [2020-09-24 23:33:31,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b07f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:33:31, skipping insertion in model container [2020-09-24 23:33:31,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:29" (2/3) ... [2020-09-24 23:33:31,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b07f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:33:31, skipping insertion in model container [2020-09-24 23:33:31,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:33:31" (3/3) ... [2020-09-24 23:33:31,510 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product39.cil.c [2020-09-24 23:33:31,522 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:33:31,535 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:33:31,558 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:33:31,603 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:33:31,603 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:33:31,604 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:33:31,604 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:33:31,604 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:33:31,604 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:33:31,604 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:33:31,605 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:33:31,651 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-24 23:33:31,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 23:33:31,694 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:33:31,696 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] [2020-09-24 23:33:31,697 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:33:31,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:33:31,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1902377435, now seen corresponding path program 1 times [2020-09-24 23:33:31,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:33:31,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294323460] [2020-09-24 23:33:31,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:33:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:32,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:32,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:33,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:34,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:35,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:37,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:37,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 23:33:37,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:33:37,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-09-24 23:33:37,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:37,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:33:37,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:33:37,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 23:33:37,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 23:33:37,880 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:33:37,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:33:37,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:38,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:38,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:38,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:33:38,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:38,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-09-24 23:33:38,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:38,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:38,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:38,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:33:38,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:38,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:33:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:38,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:38,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:38,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:38,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:38,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 23:33:38,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:38,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:38,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:38,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:38,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:33:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:38,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:38,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:38,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:38,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:38,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:38,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:38,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:38,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:38,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:38,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:38,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:33:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:38,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:38,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:38,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:38,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:38,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:33:38,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:38,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:38,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:38,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:38,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:38,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:33:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:38,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:38,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:38,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:38,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:38,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:33:38,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:38,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:38,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:38,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:38,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:38,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:33:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:38,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:38,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:38,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:33:38,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:38,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:38,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:38,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:38,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:38,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:33:38,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:38,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 23:33:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:38,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:38,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:38,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:38,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:38,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:33:38,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:38,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:33:38,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:38,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:38,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:38,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:33:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:38,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:38,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:38,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:38,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:38,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:38,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:38,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:38,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:33:38,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:38,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:38,600 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 23:33:38,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [294323460] [2020-09-24 23:33:38,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:33:38,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:33:38,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307644614] [2020-09-24 23:33:38,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:33:38,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:33:38,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:33:38,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:33:38,643 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 9 states. [2020-09-24 23:33:39,296 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:33:40,360 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:40,727 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:33:41,139 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:41,557 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:41,923 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:42,789 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:33:43,140 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:43,735 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:45,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:33:45,014 INFO L93 Difference]: Finished difference Result 663 states and 807 transitions. [2020-09-24 23:33:45,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 23:33:45,019 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 23:33:45,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:33:45,042 INFO L225 Difference]: With dead ends: 663 [2020-09-24 23:33:45,042 INFO L226 Difference]: Without dead ends: 460 [2020-09-24 23:33:45,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 23:33:45,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-09-24 23:33:45,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 387. [2020-09-24 23:33:45,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2020-09-24 23:33:45,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 432 transitions. [2020-09-24 23:33:45,185 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 432 transitions. Word has length 148 [2020-09-24 23:33:45,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:33:45,186 INFO L479 AbstractCegarLoop]: Abstraction has 387 states and 432 transitions. [2020-09-24 23:33:45,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:33:45,187 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 432 transitions. [2020-09-24 23:33:45,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 23:33:45,192 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:33:45,192 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] [2020-09-24 23:33:45,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:33:45,193 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:33:45,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:33:45,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1595258182, now seen corresponding path program 1 times [2020-09-24 23:33:45,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:33:45,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [665697164] [2020-09-24 23:33:45,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:33:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:45,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:45,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:46,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:47,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:50,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:50,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-24 23:33:50,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:33:50,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 23:33:50,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:50,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:33:50,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 23:33:50,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 23:33:50,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:50,608 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:33:50,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:33:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:50,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:50,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:50,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:33:50,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:50,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-24 23:33:50,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:50,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:50,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:50,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 23:33:50,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:50,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:33:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:50,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:50,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:50,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:50,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:50,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:50,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:50,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:50,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:50,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:50,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:33:50,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:33:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:50,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:50,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:50,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:50,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:50,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:33:50,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:50,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:50,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:50,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:50,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:50,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:33:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:50,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:50,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:50,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:50,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:50,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:33:50,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:50,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:50,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:50,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:50,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:50,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:33:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:50,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:50,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:50,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:50,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:50,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:50,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:50,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:50,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:33:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:50,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:50,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:50,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:33:50,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:50,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:33:50,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:50,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:50,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:50,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:33:50,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:50,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 23:33:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:50,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:50,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:50,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:33:50,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:50,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:33:50,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:50,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:50,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:50,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:33:50,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:33:50,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 23:33:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:51,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:51,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:51,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:51,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:51,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:33:51,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:51,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:51,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:51,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:51,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:51,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 23:33:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:51,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:51,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:51,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:51,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:51,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:33:51,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:33:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:51,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:51,094 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 23:33:51,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [665697164] [2020-09-24 23:33:51,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:33:51,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:33:51,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484728627] [2020-09-24 23:33:51,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:33:51,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:33:51,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:33:51,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:33:51,101 INFO L87 Difference]: Start difference. First operand 387 states and 432 transitions. Second operand 10 states. [2020-09-24 23:33:51,639 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:33:52,968 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:53,298 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:53,651 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:54,033 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:33:54,372 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:33:55,127 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:33:55,425 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:33:55,792 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:33:57,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:33:57,083 INFO L93 Difference]: Finished difference Result 933 states and 1151 transitions. [2020-09-24 23:33:57,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 23:33:57,084 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-09-24 23:33:57,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:33:57,093 INFO L225 Difference]: With dead ends: 933 [2020-09-24 23:33:57,093 INFO L226 Difference]: Without dead ends: 661 [2020-09-24 23:33:57,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 21 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 23:33:57,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2020-09-24 23:33:57,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 544. [2020-09-24 23:33:57,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2020-09-24 23:33:57,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 621 transitions. [2020-09-24 23:33:57,194 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 621 transitions. Word has length 163 [2020-09-24 23:33:57,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:33:57,195 INFO L479 AbstractCegarLoop]: Abstraction has 544 states and 621 transitions. [2020-09-24 23:33:57,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:33:57,195 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 621 transitions. [2020-09-24 23:33:57,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-24 23:33:57,199 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:33:57,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:33:57,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:33:57,199 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:33:57,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:33:57,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1300660200, now seen corresponding path program 1 times [2020-09-24 23:33:57,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:33:57,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1668718331] [2020-09-24 23:33:57,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:33:57,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:57,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:57,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:00,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:00,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-24 23:34:00,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:34:00,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3502 [2020-09-24 23:34:00,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:00,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:34:00,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 23:34:00,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-24 23:34:00,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:01,039 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:34:01,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:34:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:34:01,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:01,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 23:34:01,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:01,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:01,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:34:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:01,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:01,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:34:01,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:01,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:01,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:01,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:34:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:01,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:01,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:34:01,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:01,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:01,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:01,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:34:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:01,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:01,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:34:01,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:01,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:01,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:01,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:34:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:01,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:01,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:34:01,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:01,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:01,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:34:01,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:34:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:34:01,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:01,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:34:01,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:01,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 23:34:01,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:01,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 23:34:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:34:01,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:01,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:34:01,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:01,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:34:01,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:01,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 23:34:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:34:01,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:34:01,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 23:34:01,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:01,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 23:34:01,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:01,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:34:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:34:01,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:34:01,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 23:34:01,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:01,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:01,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:01,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:34:01,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:34:01,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:34:01,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 23:34:01,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:01,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:01,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:01,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:34:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:34:01,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:01,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:34:01,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:01,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:01,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:01,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:34:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:34:01,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:01,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:34:01,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:01,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:01,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:01,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 23:34:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:01,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:01,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:34:01,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:01,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:34:01,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:01,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 23:34:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:01,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:01,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:34:01,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:01,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:34:01,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:01,572 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 23:34:01,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1668718331] [2020-09-24 23:34:01,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:34:01,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 23:34:01,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380254002] [2020-09-24 23:34:01,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:34:01,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:34:01,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:34:01,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:34:01,575 INFO L87 Difference]: Start difference. First operand 544 states and 621 transitions. Second operand 7 states. [2020-09-24 23:34:02,132 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:34:05,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:34:05,303 INFO L93 Difference]: Finished difference Result 1246 states and 1619 transitions. [2020-09-24 23:34:05,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 23:34:05,304 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2020-09-24 23:34:05,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:34:05,323 INFO L225 Difference]: With dead ends: 1246 [2020-09-24 23:34:05,324 INFO L226 Difference]: Without dead ends: 1243 [2020-09-24 23:34:05,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:34:05,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2020-09-24 23:34:05,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 926. [2020-09-24 23:34:05,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 926 states. [2020-09-24 23:34:05,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1100 transitions. [2020-09-24 23:34:05,517 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1100 transitions. Word has length 201 [2020-09-24 23:34:05,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:34:05,519 INFO L479 AbstractCegarLoop]: Abstraction has 926 states and 1100 transitions. [2020-09-24 23:34:05,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:34:05,519 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1100 transitions. [2020-09-24 23:34:05,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-09-24 23:34:05,529 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:34:05,529 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:34:05,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:34:05,530 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:34:05,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:34:05,530 INFO L82 PathProgramCache]: Analyzing trace with hash -890507167, now seen corresponding path program 1 times [2020-09-24 23:34:05,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:34:05,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984683354] [2020-09-24 23:34:05,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:34:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:05,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:05,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:05,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:06,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:07,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:09,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:10,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:10,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-09-24 23:34:10,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 23:34:10,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-09-24 23:34:10,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:10,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:34:10,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 23:34:10,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-09-24 23:34:10,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:10,951 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:34:10,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:34:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:11,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:11,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:34:11,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:11,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-24 23:34:11,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:11,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:11,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:11,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 23:34:11,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:11,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:34:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:11,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:11,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:11,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:11,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:34:11,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:11,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:11,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:11,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:34:11,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:11,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:34:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:11,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:11,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:11,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:11,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:34:11,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:11,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:11,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:11,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:34:11,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:11,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:34:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:11,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:11,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:11,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:11,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:34:11,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:34:11,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:11,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:34:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:11,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:11,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:11,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:11,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:34:11,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:11,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:11,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:11,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:34:11,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:11,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:34:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:11,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:11,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:34:11,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:11,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:34:11,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:11,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:11,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:11,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:34:11,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:11,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 23:34:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:11,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:11,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:34:11,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:11,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:34:11,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:11,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:11,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:11,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:34:11,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:11,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 23:34:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:11,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:11,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 23:34:11,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:34:11,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-09-24 23:34:11,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:11,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:34:11,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:34:11,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-24 23:34:11,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:11,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:34:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:11,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:11,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:34:11,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:34:11,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 23:34:11,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:11,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 23:34:11,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:11,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:34:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:11,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:11,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:34:11,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:34:11,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 23:34:11,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:11,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:11,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:11,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:11,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:11,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:34:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:11,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:11,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:34:11,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:34:11,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 23:34:11,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:11,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:11,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:11,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:11,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:11,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:34:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:11,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:11,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:34:11,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:11,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:34:11,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:11,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:11,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:11,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:11,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:11,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:34:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:11,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:11,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:34:11,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:11,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:34:11,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:11,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:11,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:11,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:11,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:11,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 23:34:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:11,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:11,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 23:34:11,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:11,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 23:34:11,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:11,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:11,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 23:34:11,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:11,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:34:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:11,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:11,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:11,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:11,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:34:11,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:11,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:11,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:11,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:11,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:11,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 23:34:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:11,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:11,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:11,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:11,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:34:11,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:11,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:11,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:11,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:11,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:11,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-24 23:34:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:11,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:11,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:34:11,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:11,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:34:11,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:11,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:34:11,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:34:11,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:34:11,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:12,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-24 23:34:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:12,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:12,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:12,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:12,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:12,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:34:12,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:12,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:12,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:34:12,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:12,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:12,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-09-24 23:34:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:12,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:12,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:12,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:12,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:12,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:34:12,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:12,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:34:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:12,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:12,079 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-24 23:34:12,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984683354] [2020-09-24 23:34:12,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:34:12,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 23:34:12,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674503489] [2020-09-24 23:34:12,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:34:12,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:34:12,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:34:12,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:34:12,082 INFO L87 Difference]: Start difference. First operand 926 states and 1100 transitions. Second operand 10 states. [2020-09-24 23:34:12,695 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:34:13,978 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190