/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:27:12,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:27:12,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:27:12,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:27:12,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:27:12,072 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:27:12,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:27:12,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:27:12,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:27:12,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:27:12,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:27:12,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:27:12,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:27:12,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:27:12,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:27:12,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:27:12,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:27:12,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:27:12,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:27:12,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:27:12,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:27:12,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:27:12,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:27:12,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:27:12,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:27:12,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:27:12,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:27:12,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:27:12,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:27:12,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:27:12,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:27:12,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:27:12,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:27:12,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:27:12,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:27:12,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:27:12,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:27:12,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:27:12,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:27:12,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:27:12,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:27:12,110 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:27:12,136 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:27:12,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:27:12,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:27:12,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:27:12,138 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:27:12,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:27:12,139 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:27:12,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:27:12,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:27:12,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:27:12,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:27:12,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:27:12,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:27:12,140 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:27:12,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:27:12,141 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:27:12,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:27:12,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:27:12,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:27:12,142 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:27:12,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:27:12,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:27:12,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:27:12,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:27:12,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:27:12,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:27:12,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:27:12,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:27:12,143 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:27:12,144 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:27:12,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:27:12,643 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:27:12,648 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:27:12,650 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:27:12,650 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:27:12,651 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c [2020-09-25 06:27:12,749 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f05cd6bb2/e9ff743b281f4f56854e8e41926de9ff/FLAGc43ba4945 [2020-09-25 06:27:13,396 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:27:13,397 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c [2020-09-25 06:27:13,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f05cd6bb2/e9ff743b281f4f56854e8e41926de9ff/FLAGc43ba4945 [2020-09-25 06:27:13,643 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f05cd6bb2/e9ff743b281f4f56854e8e41926de9ff [2020-09-25 06:27:13,656 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:27:13,661 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:27:13,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:27:13,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:27:13,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:27:13,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:27:13" (1/1) ... [2020-09-25 06:27:13,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:13, skipping insertion in model container [2020-09-25 06:27:13,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:27:13" (1/1) ... [2020-09-25 06:27:13,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:27:13,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:27:14,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:27:14,172 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:27:14,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:27:14,451 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:27:14,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:14 WrapperNode [2020-09-25 06:27:14,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:27:14,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:27:14,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:27:14,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:27:14,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:14" (1/1) ... [2020-09-25 06:27:14,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:14" (1/1) ... [2020-09-25 06:27:14,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:14" (1/1) ... [2020-09-25 06:27:14,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:14" (1/1) ... [2020-09-25 06:27:14,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:14" (1/1) ... [2020-09-25 06:27:14,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:14" (1/1) ... [2020-09-25 06:27:14,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:14" (1/1) ... [2020-09-25 06:27:14,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:27:14,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:27:14,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:27:14,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:27:14,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:27:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:27:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:27:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:27:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:27:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:27:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:27:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:27:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:27:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:27:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:27:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:27:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:27:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:27:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:27:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:27:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:27:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:27:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:27:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:27:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:27:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:27:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:27:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:27:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:27:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:27:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:27:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:27:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:27:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:27:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:27:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:27:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:27:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:27:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:27:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:27:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:27:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:27:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:27:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 06:27:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:27:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:27:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:27:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:27:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:27:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:27:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:27:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:27:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:27:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:27:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:27:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:27:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:27:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:27:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:27:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:27:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:27:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:27:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:27:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:27:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:27:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:27:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:27:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:27:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:27:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:27:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:27:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:27:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:27:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:27:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:27:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:27:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:27:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:27:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:27:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:27:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:27:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:27:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 06:27:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:27:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:27:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:27:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:27:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:27:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:27:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:27:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:27:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:27:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:27:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:27:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:27:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:27:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:27:15,823 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:27:15,823 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:27:15,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:27:15 BoogieIcfgContainer [2020-09-25 06:27:15,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:27:15,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:27:15,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:27:15,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:27:15,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:27:13" (1/3) ... [2020-09-25 06:27:15,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179ff408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:27:15, skipping insertion in model container [2020-09-25 06:27:15,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:14" (2/3) ... [2020-09-25 06:27:15,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179ff408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:27:15, skipping insertion in model container [2020-09-25 06:27:15,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:27:15" (3/3) ... [2020-09-25 06:27:15,840 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product39.cil.c [2020-09-25 06:27:15,852 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:27:15,862 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:27:15,885 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:27:15,919 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:27:15,919 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:27:15,920 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:27:15,920 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:27:15,920 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:27:15,920 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:27:15,920 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:27:15,920 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:27:15,950 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2020-09-25 06:27:15,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 06:27:15,969 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:27:15,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:27:15,971 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:27:15,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:27:15,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1206638140, now seen corresponding path program 1 times [2020-09-25 06:27:15,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:27:15,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418934972] [2020-09-25 06:27:15,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:27:16,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:16,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:16,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:18,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:19,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:21,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:21,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 06:27:21,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:27:21,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 06:27:21,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:21,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:21,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:21,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:27:21,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:21,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 06:27:21,875 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:27:21,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:27:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:21,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:22,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:22,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:27:22,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:22,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-09-25 06:27:22,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:22,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:22,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:22,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:22,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:22,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:22,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:27:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:22,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:22,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:22,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:22,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:22,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:27:22,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:22,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:22,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:22,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:22,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:22,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:22,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:27:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:22,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:22,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:22,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:22,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:22,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:27:22,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:22,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:22,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:22,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:22,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:22,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:22,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:27:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:22,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:22,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:22,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:22,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:22,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:27:22,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:22,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:22,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:22,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:22,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:22,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:22,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:27:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:22,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:22,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:22,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:22,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:22,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:22,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:22,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:22,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:22,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:22,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:22,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:22,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 06:27:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:22,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:22,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:22,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:22,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:22,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:22,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:22,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:22,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:22,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:22,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:22,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:22,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:27:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:22,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:22,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:22,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:22,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:22,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:22,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:22,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:22,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:22,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:22,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:22,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:22,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:27:22,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418934972] [2020-09-25 06:27:22,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:27:22,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:27:22,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499722063] [2020-09-25 06:27:22,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:27:22,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:27:22,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:27:22,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:27:22,316 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2020-09-25 06:27:23,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:27:23,828 INFO L93 Difference]: Finished difference Result 491 states and 585 transitions. [2020-09-25 06:27:23,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:27:23,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 06:27:23,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:27:23,851 INFO L225 Difference]: With dead ends: 491 [2020-09-25 06:27:23,851 INFO L226 Difference]: Without dead ends: 304 [2020-09-25 06:27:23,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:27:23,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-25 06:27:23,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 261. [2020-09-25 06:27:23,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-25 06:27:23,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 284 transitions. [2020-09-25 06:27:23,974 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 284 transitions. Word has length 142 [2020-09-25 06:27:23,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:27:23,975 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 284 transitions. [2020-09-25 06:27:23,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:27:23,976 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 284 transitions. [2020-09-25 06:27:23,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 06:27:23,981 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:27:23,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:27:23,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:27:23,983 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:27:23,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:27:23,983 INFO L82 PathProgramCache]: Analyzing trace with hash 965995347, now seen corresponding path program 1 times [2020-09-25 06:27:23,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:27:23,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1614074192] [2020-09-25 06:27:23,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:27:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:24,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:24,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:25,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:26,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:27,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:29,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:29,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 06:27:29,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:27:29,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-09-25 06:27:29,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:29,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:29,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:29,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 06:27:29,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:27:29,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:29,449 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:27:29,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:27:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:29,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:29,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:29,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:27:29,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:29,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 06:27:29,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:29,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:29,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:29,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:29,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:29,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:29,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:27:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:29,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:29,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:29,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:29,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:29,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:29,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:29,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:29,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:29,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:29,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:29,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:29,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:27:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:29,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:29,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:29,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:29,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:29,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:29,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:29,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:29,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:29,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:29,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:29,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:29,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:27:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:29,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:29,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:29,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:29,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:29,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:29,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:29,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:29,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:29,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:29,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:29,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:29,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:27:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:29,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:29,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:29,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:29,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:29,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:29,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:29,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:29,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:29,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:29,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:29,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:29,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:27:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:29,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:29,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:29,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:29,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:29,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:29,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:29,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:29,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:29,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:29,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:29,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:29,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:27:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:29,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:29,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:29,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:29,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:29,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:29,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:29,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:29,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:29,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:29,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:29,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:29,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:27:29,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1614074192] [2020-09-25 06:27:29,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:27:29,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:27:29,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534807073] [2020-09-25 06:27:29,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:27:29,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:27:29,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:27:29,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:27:29,682 INFO L87 Difference]: Start difference. First operand 261 states and 284 transitions. Second operand 4 states. [2020-09-25 06:27:30,348 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:27:31,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:27:31,533 INFO L93 Difference]: Finished difference Result 402 states and 452 transitions. [2020-09-25 06:27:31,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:27:31,534 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 06:27:31,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:27:31,538 INFO L225 Difference]: With dead ends: 402 [2020-09-25 06:27:31,538 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 06:27:31,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:27:31,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 06:27:31,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 251. [2020-09-25 06:27:31,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-09-25 06:27:31,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 271 transitions. [2020-09-25 06:27:31,588 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 271 transitions. Word has length 143 [2020-09-25 06:27:31,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:27:31,589 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 271 transitions. [2020-09-25 06:27:31,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:27:31,589 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 271 transitions. [2020-09-25 06:27:31,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 06:27:31,592 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:27:31,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:27:31,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:27:31,593 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:27:31,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:27:31,593 INFO L82 PathProgramCache]: Analyzing trace with hash 67671664, now seen corresponding path program 1 times [2020-09-25 06:27:31,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:27:31,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114015155] [2020-09-25 06:27:31,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:27:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:31,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:32,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:33,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:36,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:36,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 06:27:36,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:27:36,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 06:27:36,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:36,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:36,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:27:36,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 06:27:36,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 06:27:36,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:37,036 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:27:37,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:27:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:37,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:37,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:37,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:27:37,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:37,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-25 06:27:37,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:37,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:37,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:37,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:37,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 06:27:37,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:37,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:27:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:37,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:37,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:37,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:37,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:37,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:37,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:37,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:37,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:37,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:37,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:27:37,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:37,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:27:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:37,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:37,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:37,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:37,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:37,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:37,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:37,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:37,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:37,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:37,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:27:37,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:37,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:27:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:37,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:37,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:37,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:37,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:37,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 06:27:37,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:37,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:37,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:37,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:37,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:27:37,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:37,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:27:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:37,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:37,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:37,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:37,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:37,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:37,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:37,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:37,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:37,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:37,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:27:37,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:27:37,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:27:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:37,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:37,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:37,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:37,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:37,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:37,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:37,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:37,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:37,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:37,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:37,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:37,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 06:27:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:37,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:37,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:37,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:37,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:37,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:37,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:37,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:37,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:37,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:37,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:37,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:37,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:27:37,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114015155] [2020-09-25 06:27:37,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:27:37,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:27:37,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974109007] [2020-09-25 06:27:37,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:27:37,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:27:37,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:27:37,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:27:37,477 INFO L87 Difference]: Start difference. First operand 251 states and 271 transitions. Second operand 5 states. [2020-09-25 06:27:37,973 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:27:38,721 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:27:40,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:27:40,581 INFO L93 Difference]: Finished difference Result 664 states and 764 transitions. [2020-09-25 06:27:40,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:27:40,582 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-09-25 06:27:40,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:27:40,589 INFO L225 Difference]: With dead ends: 664 [2020-09-25 06:27:40,589 INFO L226 Difference]: Without dead ends: 523 [2020-09-25 06:27:40,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:27:40,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-09-25 06:27:40,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 456. [2020-09-25 06:27:40,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2020-09-25 06:27:40,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 510 transitions. [2020-09-25 06:27:40,681 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 510 transitions. Word has length 152 [2020-09-25 06:27:40,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:27:40,682 INFO L479 AbstractCegarLoop]: Abstraction has 456 states and 510 transitions. [2020-09-25 06:27:40,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:27:40,683 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 510 transitions. [2020-09-25 06:27:40,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 06:27:40,685 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:27:40,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:27:40,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:27:40,686 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:27:40,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:27:40,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1856383956, now seen corresponding path program 1 times [2020-09-25 06:27:40,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:27:40,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48297820] [2020-09-25 06:27:40,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:27:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:40,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:41,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:41,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:44,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:45,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:45,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 06:27:45,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:27:45,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 06:27:45,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:45,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:45,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:27:45,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 06:27:45,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:27:45,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:46,079 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:27:46,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:27:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:46,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:46,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:46,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:27:46,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:46,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 06:27:46,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:46,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:46,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:46,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:46,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:46,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:46,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:27:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:46,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:46,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:46,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:46,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:46,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:27:46,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:46,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:46,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:27:46,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:27:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:46,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:46,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:46,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:46,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:46,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:27:46,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:46,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:46,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:46,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:46,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:46,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:46,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:27:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:46,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:46,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:46,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:46,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:46,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:27:46,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:46,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:46,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:46,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:46,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:46,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:46,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:27:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:46,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:46,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:46,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:46,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:46,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:46,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:46,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:46,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:46,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:46,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:46,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:46,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 06:27:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:46,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:46,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:46,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:27:46,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:46,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:27:46,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:46,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:46,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:46,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:46,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:27:46,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:46,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 06:27:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:46,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:46,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:46,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:46,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:46,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:46,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:46,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:46,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:46,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:46,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:27:46,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:46,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 06:27:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:46,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:46,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:46,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:46,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:46,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:27:46,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:46,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:46,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:27:46,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:46,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:27:46,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:46,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:27:46,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48297820] [2020-09-25 06:27:46,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:27:46,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:27:46,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114393433] [2020-09-25 06:27:46,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:27:46,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:27:46,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:27:46,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:27:46,466 INFO L87 Difference]: Start difference. First operand 456 states and 510 transitions. Second operand 9 states. [2020-09-25 06:27:47,142 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:27:48,362 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:27:48,709 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:27:49,040 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:27:49,387 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:27:49,716 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:27:50,349 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:27:50,644 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:27:50,980 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:27:52,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:27:52,008 INFO L93 Difference]: Finished difference Result 1046 states and 1253 transitions. [2020-09-25 06:27:52,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:27:52,009 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 06:27:52,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:27:52,016 INFO L225 Difference]: With dead ends: 1046 [2020-09-25 06:27:52,016 INFO L226 Difference]: Without dead ends: 700 [2020-09-25 06:27:52,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 06:27:52,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-09-25 06:27:52,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 619. [2020-09-25 06:27:52,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2020-09-25 06:27:52,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 704 transitions. [2020-09-25 06:27:52,125 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 704 transitions. Word has length 161 [2020-09-25 06:27:52,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:27:52,125 INFO L479 AbstractCegarLoop]: Abstraction has 619 states and 704 transitions. [2020-09-25 06:27:52,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:27:52,126 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 704 transitions. [2020-09-25 06:27:52,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 06:27:52,128 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:27:52,129 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] [2020-09-25 06:27:52,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:27:52,129 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:27:52,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:27:52,130 INFO L82 PathProgramCache]: Analyzing trace with hash 120847126, now seen corresponding path program 1 times [2020-09-25 06:27:52,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:27:52,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [577730589] [2020-09-25 06:27:52,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:27:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:52,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:52,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:57,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:57,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 06:27:57,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:27:57,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 06:27:57,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:57,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:57,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:27:57,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-25 06:27:57,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:27:57,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:27:57,545 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:27:57,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:27:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:57,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:57,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:57,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:27:57,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:57,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 06:27:57,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:57,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:57,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:57,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:57,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:57,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:57,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:27:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:57,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:57,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:57,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:57,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:57,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:57,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:57,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:57,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:57,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:57,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:57,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:57,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:27:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:57,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:57,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:57,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:57,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:57,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:57,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:57,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:57,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:57,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:57,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:57,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:57,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:27:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:57,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:57,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:57,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:57,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:57,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:27:57,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:57,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:57,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:57,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:57,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:57,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:57,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:27:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:57,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:57,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:57,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:57,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:57,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:57,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:57,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:57,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:57,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:57,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:57,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:57,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 06:27:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:57,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:57,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:57,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:27:57,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:57,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 06:27:57,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:57,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:57,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:27:57,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 06:27:57,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:27:57,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:27:57,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:27:57,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:57,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:57,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:57,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 06:27:57,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:57,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 06:27:57,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:57,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:57,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:27:57,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 06:27:57,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:27:57,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:57,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:27:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:57,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:58,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:58,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:27:58,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:58,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 06:27:58,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:58,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:58,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:27:58,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:58,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 06:27:58,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:58,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:27:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:58,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:58,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:58,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:27:58,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:58,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:27:58,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:58,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:58,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:58,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:58,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:58,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:27:58,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:27:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:58,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:58,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:58,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:27:58,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:58,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:58,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:58,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:58,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:58,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 06:27:58,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:58,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:27:58,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 06:27:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:58,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:58,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:58,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:58,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:58,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:27:58,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:58,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:58,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:58,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:58,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:58,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:58,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 06:27:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:58,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:58,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:58,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:58,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:58,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:58,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:58,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:58,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:58,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:58,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:58,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:58,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:27:58,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [577730589] [2020-09-25 06:27:58,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:27:58,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:27:58,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331066175] [2020-09-25 06:27:58,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:27:58,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:27:58,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:27:58,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:27:58,334 INFO L87 Difference]: Start difference. First operand 619 states and 704 transitions. Second operand 9 states.