/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:38:19,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:38:19,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:38:20,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:38:20,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:38:20,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:38:20,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:38:20,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:38:20,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:38:20,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:38:20,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:38:20,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:38:20,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:38:20,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:38:20,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:38:20,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:38:20,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:38:20,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:38:20,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:38:20,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:38:20,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:38:20,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:38:20,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:38:20,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:38:20,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:38:20,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:38:20,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:38:20,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:38:20,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:38:20,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:38:20,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:38:20,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:38:20,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:38:20,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:38:20,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:38:20,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:38:20,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:38:20,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:38:20,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:38:20,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:38:20,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:38:20,107 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:38:20,134 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:38:20,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:38:20,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:38:20,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:38:20,136 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:38:20,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:38:20,137 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:38:20,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:38:20,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:38:20,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:38:20,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:38:20,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:38:20,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:38:20,138 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:38:20,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:38:20,138 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:38:20,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:38:20,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:38:20,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:38:20,139 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:38:20,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:38:20,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:38:20,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:38:20,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:38:20,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:38:20,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:38:20,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:38:20,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:38:20,141 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:38:20,141 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:38:20,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:38:20,612 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:38:20,617 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:38:20,620 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:38:20,621 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:38:20,622 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-09-25 00:38:20,732 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e8c6122d/6e6ba01241644bd39c3e8a44dca60688/FLAG0d5582f01 [2020-09-25 00:38:21,322 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:38:21,323 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-09-25 00:38:21,338 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e8c6122d/6e6ba01241644bd39c3e8a44dca60688/FLAG0d5582f01 [2020-09-25 00:38:21,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e8c6122d/6e6ba01241644bd39c3e8a44dca60688 [2020-09-25 00:38:21,623 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:38:21,630 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:38:21,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:38:21,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:38:21,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:38:21,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:38:21" (1/1) ... [2020-09-25 00:38:21,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:21, skipping insertion in model container [2020-09-25 00:38:21,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:38:21" (1/1) ... [2020-09-25 00:38:21,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:38:21,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:38:22,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:38:22,306 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:38:22,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:38:22,424 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:38:22,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:22 WrapperNode [2020-09-25 00:38:22,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:38:22,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:38:22,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:38:22,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:38:22,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:22" (1/1) ... [2020-09-25 00:38:22,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:22" (1/1) ... [2020-09-25 00:38:22,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:22" (1/1) ... [2020-09-25 00:38:22,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:22" (1/1) ... [2020-09-25 00:38:22,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:22" (1/1) ... [2020-09-25 00:38:22,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:22" (1/1) ... [2020-09-25 00:38:22,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:22" (1/1) ... [2020-09-25 00:38:22,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:38:22,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:38:22,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:38:22,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:38:22,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:38:22,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:38:22,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:38:22,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:38:22,666 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:38:22,667 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:38:22,667 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:38:22,667 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:38:22,667 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:38:22,668 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:38:22,668 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:38:22,669 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:38:22,669 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 00:38:22,669 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:38:22,669 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:38:22,669 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:38:22,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:38:22,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:38:22,671 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:38:22,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:38:22,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 00:38:22,672 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 00:38:22,672 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:38:22,673 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:38:22,673 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:38:22,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:38:22,674 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:38:22,674 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:38:22,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:38:22,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 00:38:22,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:38:22,674 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:38:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:38:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:38:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:38:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:38:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 00:38:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:38:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:38:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:38:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:38:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:38:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:38:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:38:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:38:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:38:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:38:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:38:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:38:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:38:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:38:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:38:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 00:38:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:38:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:38:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:38:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:38:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:38:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:38:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:38:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 00:38:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:38:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:38:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:38:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:38:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 00:38:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:38:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:38:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:38:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:38:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 00:38:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 00:38:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:38:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:38:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:38:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:38:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:38:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:38:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:38:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:38:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:38:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:38:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:38:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:38:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:38:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:38:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:38:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:38:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:38:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:38:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:38:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:38:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:38:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:38:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:38:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:38:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:38:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:38:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:38:23,847 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:38:23,847 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:38:23,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:38:23 BoogieIcfgContainer [2020-09-25 00:38:23,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:38:23,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:38:23,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:38:23,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:38:23,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:38:21" (1/3) ... [2020-09-25 00:38:23,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bbaceb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:38:23, skipping insertion in model container [2020-09-25 00:38:23,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:22" (2/3) ... [2020-09-25 00:38:23,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bbaceb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:38:23, skipping insertion in model container [2020-09-25 00:38:23,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:38:23" (3/3) ... [2020-09-25 00:38:23,865 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2020-09-25 00:38:23,876 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:38:23,887 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:38:23,911 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:38:23,944 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:38:23,945 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:38:23,945 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:38:23,945 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:38:23,945 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:38:23,945 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:38:23,946 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:38:23,946 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:38:23,977 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2020-09-25 00:38:23,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 00:38:23,996 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:38:23,997 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 00:38:23,998 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:38:24,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:38:24,006 INFO L82 PathProgramCache]: Analyzing trace with hash 2046718669, now seen corresponding path program 1 times [2020-09-25 00:38:24,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:38:24,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [613169187] [2020-09-25 00:38:24,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:38:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:24,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:24,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:26,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:26,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:28,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:29,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:29,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 00:38:29,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:38:29,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 00:38:29,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:38:29,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-25 00:38:29,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:38:29,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 32 [2020-09-25 00:38:29,901 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:38:29,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:38:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:29,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:30,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:30,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:38:30,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:30,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 00:38:30,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:30,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:30,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:30,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:30,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:30,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:38:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:30,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:30,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:30,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:30,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:30,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:30,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:30,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:30,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:30,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:30,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:30,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:38:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:30,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:30,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:30,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:30,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:30,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:30,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:30,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:30,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:30,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:30,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:30,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:38:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:30,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:30,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:30,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:30,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:30,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:38:30,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:30,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:30,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:30,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:30,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:30,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:38:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:30,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:30,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:30,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:30,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:30,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:30,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:30,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:30,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:30,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:30,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:30,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:38:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:30,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:30,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:30,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:30,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:30,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:38:30,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:30,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:38:30,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:30,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:38:30,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:30,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 00:38:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:30,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:30,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:30,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:30,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:30,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:38:30,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:30,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:30,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:30,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:38:30,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:30,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:38:30,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [613169187] [2020-09-25 00:38:30,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:38:30,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:38:30,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28660898] [2020-09-25 00:38:30,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:38:30,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:38:30,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:38:30,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:38:30,247 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 8 states. [2020-09-25 00:38:30,884 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:38:32,089 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:32,390 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:38:32,750 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:33,127 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:38:33,434 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:34,263 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:38:34,633 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:35,010 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:36,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:38:36,623 INFO L93 Difference]: Finished difference Result 664 states and 833 transitions. [2020-09-25 00:38:36,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:38:36,625 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 00:38:36,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:38:36,647 INFO L225 Difference]: With dead ends: 664 [2020-09-25 00:38:36,647 INFO L226 Difference]: Without dead ends: 437 [2020-09-25 00:38:36,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:38:36,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-09-25 00:38:36,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 393. [2020-09-25 00:38:36,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-09-25 00:38:36,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 454 transitions. [2020-09-25 00:38:36,835 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 454 transitions. Word has length 142 [2020-09-25 00:38:36,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:38:36,837 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 454 transitions. [2020-09-25 00:38:36,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:38:36,837 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 454 transitions. [2020-09-25 00:38:36,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 00:38:36,848 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:38:36,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:38:36,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:38:36,855 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:38:36,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:38:36,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1051506646, now seen corresponding path program 1 times [2020-09-25 00:38:36,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:38:36,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211004611] [2020-09-25 00:38:36,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:38:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:37,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:37,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:41,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:41,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-25 00:38:41,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:38:41,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 00:38:41,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:41,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:41,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-09-25 00:38:41,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:38:41,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:42,290 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:38:42,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:38:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:42,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:42,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:38:42,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:42,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-25 00:38:42,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:42,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:42,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:42,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:42,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:42,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:38:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:42,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:42,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:42,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:42,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:42,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:42,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:42,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:42,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:42,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:42,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:38:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:42,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:42,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:42,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:42,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:38:42,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:42,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:42,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:42,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:42,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:38:42,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:38:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:42,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:42,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:42,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:42,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:38:42,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:42,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:42,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:42,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:42,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:42,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:38:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:42,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:42,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:42,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:42,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:42,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:42,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:42,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:42,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:42,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:42,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 00:38:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:42,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:42,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 00:38:42,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:42,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 00:38:42,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 00:38:42,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:38:42,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:42,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:42,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:42,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:38:42,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:42,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 00:38:42,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:42,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:42,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:38:42,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:38:42,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:42,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:42,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:42,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:38:42,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:42,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 00:38:42,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:42,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:42,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:38:42,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:38:42,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:38:42,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:42,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:42,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:38:42,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:42,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 00:38:42,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:42,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:42,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:38:42,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:38:42,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:42,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:38:42,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:42,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:42,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:38:42,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:42,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:38:42,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:38:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:42,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:38:42,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:42,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:38:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:42,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:42,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:38:42,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:42,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:42,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:42,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:42,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:38:42,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:42,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:42,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-25 00:38:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:42,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:42,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:42,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:42,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:42,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:42,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:42,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:38:42,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:42,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:42,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-25 00:38:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:42,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:42,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:42,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:42,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:42,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:42,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:42,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:38:42,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:42,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:42,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:38:42,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211004611] [2020-09-25 00:38:42,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:38:42,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:38:42,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125069425] [2020-09-25 00:38:42,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:38:42,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:38:42,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:38:42,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:38:42,969 INFO L87 Difference]: Start difference. First operand 393 states and 454 transitions. Second operand 8 states. [2020-09-25 00:38:44,311 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:44,660 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:38:45,016 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:45,335 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:38:45,640 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:47,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:38:47,008 INFO L93 Difference]: Finished difference Result 770 states and 981 transitions. [2020-09-25 00:38:47,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 00:38:47,009 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 195 [2020-09-25 00:38:47,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:38:47,016 INFO L225 Difference]: With dead ends: 770 [2020-09-25 00:38:47,016 INFO L226 Difference]: Without dead ends: 487 [2020-09-25 00:38:47,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-25 00:38:47,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2020-09-25 00:38:47,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 402. [2020-09-25 00:38:47,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-25 00:38:47,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 463 transitions. [2020-09-25 00:38:47,120 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 463 transitions. Word has length 195 [2020-09-25 00:38:47,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:38:47,121 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 463 transitions. [2020-09-25 00:38:47,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:38:47,122 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 463 transitions. [2020-09-25 00:38:47,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-25 00:38:47,124 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:38:47,125 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:38:47,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:38:47,125 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:38:47,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:38:47,126 INFO L82 PathProgramCache]: Analyzing trace with hash 2072911658, now seen corresponding path program 1 times [2020-09-25 00:38:47,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:38:47,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662936808] [2020-09-25 00:38:47,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:38:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:47,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:47,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:47,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:48,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:52,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:52,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-25 00:38:52,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:38:52,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 00:38:52,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:52,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:38:52,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-09-25 00:38:52,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:38:52,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:52,603 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:38:52,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:38:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:52,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:52,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:52,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:38:52,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:52,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 00:38:52,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:52,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:52,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:52,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:52,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:52,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:38:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:52,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:52,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:52,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:52,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:52,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:52,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:52,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:52,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:52,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:52,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:38:52,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:38:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:52,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:52,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:52,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:52,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:52,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:52,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:52,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:52,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:52,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:52,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:52,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:38:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:52,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:52,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:52,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:52,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:52,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:38:52,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:52,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:52,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:52,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:52,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:52,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:38:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:52,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:52,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:52,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:52,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:52,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:38:52,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:52,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:52,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:52,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:52,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:52,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-25 00:38:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:52,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:52,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:52,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 00:38:52,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:52,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:52,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:52,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:52,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:52,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:52,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:52,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:52,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:52,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:52,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 00:38:52,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:52,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:52,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:52,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:52,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:52,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:52,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:52,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:52,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:52,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:52,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:52,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:52,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:38:52,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:52,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:52,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:52,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:52,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 00:38:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:52,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:52,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:52,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 00:38:52,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:52,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 00:38:52,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:52,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:38:52,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 00:38:52,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:38:52,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:52,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:52,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:52,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:52,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:38:52,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:52,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 00:38:52,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:52,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:38:52,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:38:52,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:38:52,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:52,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:53,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:53,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:53,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:38:53,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:53,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 00:38:53,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:53,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:38:53,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:38:53,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:38:53,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:53,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:53,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:53,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:53,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:38:53,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:53,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 00:38:53,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:53,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:53,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:53,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:38:53,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:53,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:38:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:53,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:53,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:53,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:38:53,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:53,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:38:53,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:53,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:53,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:53,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:53,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:53,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:38:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:53,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:53,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:53,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:38:53,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:53,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:38:53,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:53,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:53,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:38:53,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:53,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:53,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 00:38:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:53,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:53,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:53,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:53,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:53,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:53,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:53,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:53,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:38:53,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:53,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:53,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-25 00:38:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:53,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:53,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:53,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:53,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:53,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:53,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:53,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:38:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:53,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:53,424 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 00:38:53,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662936808] [2020-09-25 00:38:53,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:38:53,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 00:38:53,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988106197] [2020-09-25 00:38:53,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:38:53,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:38:53,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:38:53,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:38:53,430 INFO L87 Difference]: Start difference. First operand 402 states and 463 transitions. Second operand 10 states. [2020-09-25 00:38:55,217 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:55,578 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:38:55,908 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:38:56,232 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:56,596 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:38:56,903 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:38:58,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:38:58,353 INFO L93 Difference]: Finished difference Result 805 states and 1003 transitions. [2020-09-25 00:38:58,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:38:58,353 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 210 [2020-09-25 00:38:58,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:38:58,359 INFO L225 Difference]: With dead ends: 805 [2020-09-25 00:38:58,359 INFO L226 Difference]: Without dead ends: 513 [2020-09-25 00:38:58,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:38:58,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2020-09-25 00:38:58,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 410. [2020-09-25 00:38:58,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-09-25 00:38:58,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 471 transitions. [2020-09-25 00:38:58,417 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 471 transitions. Word has length 210 [2020-09-25 00:38:58,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:38:58,418 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 471 transitions. [2020-09-25 00:38:58,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:38:58,418 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 471 transitions. [2020-09-25 00:38:58,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 00:38:58,421 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:38:58,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:38:58,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:38:58,422 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:38:58,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:38:58,422 INFO L82 PathProgramCache]: Analyzing trace with hash 981988537, now seen corresponding path program 1 times [2020-09-25 00:38:58,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:38:58,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [432444619] [2020-09-25 00:38:58,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:38:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:58,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:59,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:03,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:03,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-25 00:39:03,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:39:03,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4989 [2020-09-25 00:39:03,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:03,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 00:39:03,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 00:39:03,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-09-25 00:39:03,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:03,812 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:39:03,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:39:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:03,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:04,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:04,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:39:04,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:04,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-25 00:39:04,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:04,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:39:04,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:04,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 00:39:04,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:04,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:39:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:04,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:04,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:04,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:39:04,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:04,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:39:04,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:04,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:39:04,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:04,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:39:04,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:04,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:39:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:04,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:04,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:04,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:39:04,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:04,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:39:04,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:04,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:39:04,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:04,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:39:04,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:04,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:39:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:04,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:04,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:04,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:39:04,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:04,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:39:04,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:04,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:39:04,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:04,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:39:04,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:04,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:39:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:04,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:04,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:04,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:39:04,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:04,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:39:04,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:04,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:39:04,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:04,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:39:04,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:04,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 00:39:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:04,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:04,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:04,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 00:39:04,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:04,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 00:39:04,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:04,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:39:04,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:04,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 00:39:04,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:04,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:39:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:04,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:04,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:04,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:39:04,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:04,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 00:39:04,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:04,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:04,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:04,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:04,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:04,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:39:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:04,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:04,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:04,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:39:04,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:04,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 00:39:04,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:04,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:04,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:04,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:04,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:04,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:39:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:04,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:04,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:04,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:39:04,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:04,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:39:04,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:04,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:04,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:04,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:04,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:04,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:39:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:04,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:04,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:04,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:39:04,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:04,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:39:04,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:04,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:04,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:04,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:39:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:04,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:04,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:04,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:39:04,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:04,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:39:04,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:04,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:04,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:04,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:04,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:04,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-25 00:39:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:04,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:04,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:04,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:39:04,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:04,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:39:04,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:04,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:39:04,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:04,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:39:04,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:04,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-25 00:39:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:04,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:04,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:04,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:39:04,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:04,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:39:04,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:04,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:04,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:39:04,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:04,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:04,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:39:04,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [432444619] [2020-09-25 00:39:04,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:39:04,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:39:04,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822085676] [2020-09-25 00:39:04,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:39:04,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:39:04,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:39:04,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:39:04,511 INFO L87 Difference]: Start difference. First operand 410 states and 471 transitions. Second operand 9 states. [2020-09-25 00:39:05,191 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:39:06,035 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:39:06,300 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:39:06,585 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:39:06,944 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:39:07,245 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:39:07,759 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:39:08,099 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:39:08,531 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187