/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:12:56,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:12:56,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:12:56,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:12:56,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:12:56,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:12:56,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:12:56,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:12:56,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:12:56,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:12:56,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:12:56,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:12:56,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:12:56,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:12:56,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:12:56,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:12:56,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:12:56,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:12:56,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:12:56,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:12:56,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:12:56,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:12:56,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:12:56,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:12:56,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:12:56,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:12:56,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:12:56,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:12:56,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:12:56,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:12:56,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:12:56,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:12:56,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:12:56,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:12:56,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:12:56,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:12:56,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:12:56,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:12:56,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:12:56,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:12:56,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:12:56,792 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 12:12:56,842 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:12:56,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:12:56,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:12:56,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:12:56,845 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:12:56,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:12:56,846 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:12:56,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:12:56,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:12:56,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:12:56,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:12:56,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:12:56,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:12:56,848 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:12:56,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:12:56,849 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:12:56,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:12:56,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:12:56,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:12:56,850 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:12:56,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:12:56,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:12:56,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:12:56,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:12:56,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:12:56,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:12:56,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:12:56,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:12:56,852 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:12:56,852 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:12:57,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:12:57,320 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:12:57,324 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:12:57,326 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:12:57,327 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:12:57,329 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-09-21 12:12:57,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef2991ec8/15db9e08ba484df7abcf8d2ee98ca8a6/FLAG5493760f1 [2020-09-21 12:12:58,025 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:12:58,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-09-21 12:12:58,052 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef2991ec8/15db9e08ba484df7abcf8d2ee98ca8a6/FLAG5493760f1 [2020-09-21 12:12:58,321 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef2991ec8/15db9e08ba484df7abcf8d2ee98ca8a6 [2020-09-21 12:12:58,334 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:12:58,340 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:12:58,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:12:58,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:12:58,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:12:58,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:12:58" (1/1) ... [2020-09-21 12:12:58,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:58, skipping insertion in model container [2020-09-21 12:12:58,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:12:58" (1/1) ... [2020-09-21 12:12:58,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:12:58,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:12:58,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:12:58,909 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:12:59,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:12:59,090 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:12:59,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:59 WrapperNode [2020-09-21 12:12:59,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:12:59,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:12:59,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:12:59,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:12:59,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:59" (1/1) ... [2020-09-21 12:12:59,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:59" (1/1) ... [2020-09-21 12:12:59,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:59" (1/1) ... [2020-09-21 12:12:59,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:59" (1/1) ... [2020-09-21 12:12:59,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:59" (1/1) ... [2020-09-21 12:12:59,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:59" (1/1) ... [2020-09-21 12:12:59,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:59" (1/1) ... [2020-09-21 12:12:59,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:12:59,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:12:59,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:12:59,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:12:59,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:59" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:12:59,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:12:59,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:12:59,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 12:12:59,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 12:12:59,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 12:12:59,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 12:12:59,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 12:12:59,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 12:12:59,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 12:12:59,315 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 12:12:59,315 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 12:12:59,316 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 12:12:59,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 12:12:59,316 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 12:12:59,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 12:12:59,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 12:12:59,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 12:12:59,317 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 12:12:59,317 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 12:12:59,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 12:12:59,318 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 12:12:59,318 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:12:59,318 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 12:12:59,318 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 12:12:59,318 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 12:12:59,318 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 12:12:59,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 12:12:59,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 12:12:59,319 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 12:12:59,319 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 12:12:59,319 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 12:12:59,319 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 12:12:59,320 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 12:12:59,320 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-21 12:12:59,320 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 12:12:59,320 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 12:12:59,320 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 12:12:59,320 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 12:12:59,321 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 12:12:59,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 12:12:59,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 12:12:59,321 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 12:12:59,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:12:59,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:12:59,322 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 12:12:59,322 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 12:12:59,322 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:12:59,322 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:12:59,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 12:12:59,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:12:59,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:12:59,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:12:59,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:12:59,323 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 12:12:59,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:12:59,323 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 12:12:59,324 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 12:12:59,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:12:59,324 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 12:12:59,324 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 12:12:59,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:12:59,324 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 12:12:59,325 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 12:12:59,325 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 12:12:59,325 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 12:12:59,325 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 12:12:59,325 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 12:12:59,325 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 12:12:59,326 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 12:12:59,326 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 12:12:59,326 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 12:12:59,326 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 12:12:59,326 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 12:12:59,326 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 12:12:59,327 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 12:12:59,327 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 12:12:59,327 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 12:12:59,327 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 12:12:59,327 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 12:12:59,328 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 12:12:59,328 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:12:59,328 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 12:12:59,328 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 12:12:59,328 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 12:12:59,328 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 12:12:59,329 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 12:12:59,329 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 12:12:59,329 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 12:12:59,329 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 12:12:59,329 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 12:12:59,329 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 12:12:59,330 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 12:12:59,330 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 12:12:59,330 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-21 12:12:59,330 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 12:12:59,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:12:59,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:12:59,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:13:00,505 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:13:00,506 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:13:00,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:13:00 BoogieIcfgContainer [2020-09-21 12:13:00,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:13:00,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:13:00,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:13:00,518 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:13:00,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:12:58" (1/3) ... [2020-09-21 12:13:00,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aef2ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:13:00, skipping insertion in model container [2020-09-21 12:13:00,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:59" (2/3) ... [2020-09-21 12:13:00,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aef2ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:13:00, skipping insertion in model container [2020-09-21 12:13:00,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:13:00" (3/3) ... [2020-09-21 12:13:00,522 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2020-09-21 12:13:00,534 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:13:00,545 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:13:00,568 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:13:00,598 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:13:00,598 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:13:00,598 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:13:00,598 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:13:00,598 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:13:00,598 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:13:00,599 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:13:00,599 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:13:00,632 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states. [2020-09-21 12:13:00,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 12:13:00,646 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:13:00,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:13:00,648 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:13:00,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:13:00,656 INFO L82 PathProgramCache]: Analyzing trace with hash 2059475727, now seen corresponding path program 1 times [2020-09-21 12:13:00,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:13:00,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1409985079] [2020-09-21 12:13:00,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:13:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:01,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:01,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:02,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:02,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 12:13:02,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:13:02,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1088 [2020-09-21 12:13:02,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:02,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:02,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 12:13:02,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:02,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:13:02,577 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:13:02,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:13:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:02,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:02,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:02,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:02,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:02,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-21 12:13:02,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:02,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:02,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:13:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:02,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:02,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:02,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:02,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:02,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:13:02,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:02,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:02,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:02,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:02,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:02,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:13:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:02,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:02,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:02,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:02,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:02,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:13:02,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:02,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:02,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:02,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:02,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:02,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:13:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:02,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:02,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:02,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:02,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:02,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:13:02,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:02,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:02,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:02,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:02,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:02,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:13:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:02,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:02,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:02,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:02,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:02,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:13:02,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:02,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:02,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:02,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:02,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:02,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:13:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:02,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:02,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:02,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:02,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:02,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:13:02,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:02,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:02,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:02,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:02,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:02,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:13:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:02,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:02,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:02,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:02,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:02,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:13:02,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:02,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:02,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:02,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:02,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:02,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:13:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:02,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:02,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:02,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:02,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:02,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:13:02,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:02,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:02,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:02,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:02,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:02,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:13:02,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1409985079] [2020-09-21 12:13:02,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:13:02,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:13:02,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496493734] [2020-09-21 12:13:02,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:13:02,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:13:02,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:13:02,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:13:02,840 INFO L87 Difference]: Start difference. First operand 195 states. Second operand 3 states. [2020-09-21 12:13:04,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:13:04,204 INFO L93 Difference]: Finished difference Result 349 states and 451 transitions. [2020-09-21 12:13:04,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:13:04,206 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 12:13:04,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:13:04,235 INFO L225 Difference]: With dead ends: 349 [2020-09-21 12:13:04,239 INFO L226 Difference]: Without dead ends: 188 [2020-09-21 12:13:04,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:13:04,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-09-21 12:13:04,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 152. [2020-09-21 12:13:04,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-09-21 12:13:04,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 179 transitions. [2020-09-21 12:13:04,405 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 179 transitions. Word has length 52 [2020-09-21 12:13:04,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:13:04,405 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 179 transitions. [2020-09-21 12:13:04,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:13:04,405 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 179 transitions. [2020-09-21 12:13:04,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 12:13:04,409 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:13:04,409 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] [2020-09-21 12:13:04,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:13:04,410 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:13:04,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:13:04,410 INFO L82 PathProgramCache]: Analyzing trace with hash 342362752, now seen corresponding path program 1 times [2020-09-21 12:13:04,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:13:04,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983127061] [2020-09-21 12:13:04,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:13:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:04,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:04,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:05,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:05,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 12:13:05,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:13:05,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1023 [2020-09-21 12:13:05,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:05,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:05,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 12:13:05,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:13:05,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:05,771 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:13:05,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:13:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:05,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:05,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:05,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:05,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:05,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-21 12:13:05,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:05,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:05,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:05,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:05,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:05,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:13:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:05,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:05,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:05,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:05,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:05,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:13:05,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:05,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:05,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:05,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:05,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:05,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:13:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:05,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:05,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:05,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:05,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:05,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:13:05,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:05,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:05,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:05,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:05,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:05,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:13:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:05,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:05,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:05,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:05,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:05,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:13:05,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:05,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:05,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:05,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:05,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:05,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:13:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:05,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:05,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:05,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:05,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:05,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:13:05,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:05,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:05,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:05,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:05,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:05,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 12:13:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:05,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:05,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:05,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:05,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:05,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:13:05,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:05,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:05,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:05,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:05,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:05,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 12:13:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:05,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:05,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:05,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:05,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:05,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:13:05,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:05,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:05,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:05,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:05,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:05,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 12:13:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:05,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:05,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:05,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:05,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:05,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:13:05,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:05,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:05,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:05,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:05,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:05,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:13:05,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983127061] [2020-09-21 12:13:05,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:13:05,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:13:05,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094582155] [2020-09-21 12:13:05,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:13:05,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:13:05,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:13:05,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:13:05,925 INFO L87 Difference]: Start difference. First operand 152 states and 179 transitions. Second operand 4 states. [2020-09-21 12:13:06,611 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:13:07,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:13:07,594 INFO L93 Difference]: Finished difference Result 276 states and 334 transitions. [2020-09-21 12:13:07,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:13:07,597 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 12:13:07,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:13:07,604 INFO L225 Difference]: With dead ends: 276 [2020-09-21 12:13:07,604 INFO L226 Difference]: Without dead ends: 172 [2020-09-21 12:13:07,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:13:07,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-09-21 12:13:07,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 143. [2020-09-21 12:13:07,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-09-21 12:13:07,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 167 transitions. [2020-09-21 12:13:07,672 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 167 transitions. Word has length 53 [2020-09-21 12:13:07,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:13:07,673 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 167 transitions. [2020-09-21 12:13:07,673 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:13:07,673 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 167 transitions. [2020-09-21 12:13:07,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 12:13:07,682 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:13:07,683 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] [2020-09-21 12:13:07,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:13:07,683 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:13:07,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:13:07,684 INFO L82 PathProgramCache]: Analyzing trace with hash -970398275, now seen corresponding path program 1 times [2020-09-21 12:13:07,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:13:07,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770870174] [2020-09-21 12:13:07,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:13:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:07,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:08,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:08,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:08,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 12:13:08,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:13:08,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1119 [2020-09-21 12:13:08,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:08,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:13:08,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:08,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 12:13:08,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:13:09,218 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:13:09,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:13:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:09,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:09,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:09,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:09,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:09,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-21 12:13:09,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:09,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:09,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:09,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:13:09,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:09,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:13:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:09,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:09,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:09,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:09,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:09,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:13:09,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:09,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:09,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:09,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:13:09,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:09,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:13:09,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:09,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:09,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:09,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:09,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:09,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:13:09,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:09,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:09,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:09,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:13:09,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:09,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:13:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:09,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:09,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:09,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:09,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:09,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:13:09,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:09,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:09,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:09,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:13:09,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:09,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:13:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:09,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:09,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:09,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:09,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:09,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:13:09,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:09,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:09,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:09,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:13:09,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:13:09,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:13:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:09,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:09,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:09,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:09,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:09,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:13:09,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:09,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:09,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:09,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:09,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:09,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 12:13:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:09,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:09,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:09,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:09,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:09,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:13:09,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:09,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:09,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:09,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:09,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:09,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 12:13:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:09,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:09,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:09,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:09,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:09,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:13:09,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:09,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:09,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:09,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:09,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:09,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:13:09,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770870174] [2020-09-21 12:13:09,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:13:09,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:13:09,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716521311] [2020-09-21 12:13:09,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:13:09,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:13:09,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:13:09,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:13:09,463 INFO L87 Difference]: Start difference. First operand 143 states and 167 transitions. Second operand 4 states. [2020-09-21 12:13:09,831 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:13:11,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:13:11,736 INFO L93 Difference]: Finished difference Result 424 states and 519 transitions. [2020-09-21 12:13:11,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:13:11,737 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-09-21 12:13:11,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:13:11,741 INFO L225 Difference]: With dead ends: 424 [2020-09-21 12:13:11,742 INFO L226 Difference]: Without dead ends: 305 [2020-09-21 12:13:11,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:13:11,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-09-21 12:13:11,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 256. [2020-09-21 12:13:11,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-09-21 12:13:11,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 305 transitions. [2020-09-21 12:13:11,819 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 305 transitions. Word has length 57 [2020-09-21 12:13:11,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:13:11,819 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 305 transitions. [2020-09-21 12:13:11,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:13:11,820 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 305 transitions. [2020-09-21 12:13:11,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-21 12:13:11,821 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:13:11,821 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] [2020-09-21 12:13:11,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:13:11,822 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:13:11,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:13:11,822 INFO L82 PathProgramCache]: Analyzing trace with hash -542420815, now seen corresponding path program 1 times [2020-09-21 12:13:11,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:13:11,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [928046322] [2020-09-21 12:13:11,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:13:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:11,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:12,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:12,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 12:13:12,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:12,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-09-21 12:13:12,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:12,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 12:13:12,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:12,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 12:13:12,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:13:13,393 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:13:13,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:13:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:13,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:13,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:13,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:13,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:13,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-21 12:13:13,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:13,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:13,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:13,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:13:13,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:13,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:13:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:13,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:13,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:13,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:13,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:13,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:13:13,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:13,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:13,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:13,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:13:13,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:13:13,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:13:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:13,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:13,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:13,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:13,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:13,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:13:13,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:13,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:13,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:13,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:13:13,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:13:13,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:13:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:13,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:13,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:13,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:13,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:13,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:13:13,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:13,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:13,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:13,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:13:13,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:13:13,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:13:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:13,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:13,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:13,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:13,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:13,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:13:13,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:13,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:13,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:13,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:13:13,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:13:13,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 12:13:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:13,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:13,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:13,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:13:13,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:13,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:13:13,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:13,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:13,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:13,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:13:13,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:13,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 12:13:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:13,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:13,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:13,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:13,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:13,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:13:13,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:13,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:13,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:13,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:13:13,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:13:13,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 12:13:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:13,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:13,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:13,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:13,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:13,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:13:13,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:13,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:13:13,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:13,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:13:13,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:13:13,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 12:13:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:13,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:13,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:13,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:13,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:13,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:13:13,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:13,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:13,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:13,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:13,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:13:13,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:13:13,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [928046322] [2020-09-21 12:13:13,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:13:13,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 12:13:13,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44506951] [2020-09-21 12:13:13,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:13:13,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:13:13,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:13:13,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:13:13,865 INFO L87 Difference]: Start difference. First operand 256 states and 305 transitions. Second operand 9 states. [2020-09-21 12:13:14,383 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:13:15,410 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:13:16,951 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 188 [2020-09-21 12:13:17,490 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:13:17,854 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:13:18,218 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:13:18,650 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-21 12:13:19,174 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:13:19,538 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:13:19,851 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:13:21,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:13:21,867 INFO L93 Difference]: Finished difference Result 1067 states and 1422 transitions. [2020-09-21 12:13:21,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-21 12:13:21,868 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2020-09-21 12:13:21,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:13:21,876 INFO L225 Difference]: With dead ends: 1067 [2020-09-21 12:13:21,877 INFO L226 Difference]: Without dead ends: 835 [2020-09-21 12:13:21,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2020-09-21 12:13:21,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2020-09-21 12:13:22,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 734. [2020-09-21 12:13:22,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-09-21 12:13:22,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 915 transitions. [2020-09-21 12:13:22,065 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 915 transitions. Word has length 63 [2020-09-21 12:13:22,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:13:22,066 INFO L479 AbstractCegarLoop]: Abstraction has 734 states and 915 transitions. [2020-09-21 12:13:22,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:13:22,066 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 915 transitions. [2020-09-21 12:13:22,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-21 12:13:22,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:13:22,070 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] [2020-09-21 12:13:22,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:13:22,071 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:13:22,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:13:22,071 INFO L82 PathProgramCache]: Analyzing trace with hash -230975491, now seen corresponding path program 1 times [2020-09-21 12:13:22,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:13:22,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [468198412] [2020-09-21 12:13:22,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:13:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:22,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:22,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:22,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:23,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:23,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-21 12:13:23,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:13:23,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:13:23,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:23,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:13:23,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-21 12:13:23,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:13:23,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:23,416 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:13:23,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:13:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:23,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:23,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:23,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:23,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:23,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-21 12:13:23,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:23,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:23,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:23,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:23,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:23,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:13:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:23,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:23,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:23,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:23,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:23,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:13:23,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:23,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:23,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:23,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:23,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:23,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:13:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:23,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:23,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:23,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:23,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:23,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:13:23,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:23,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:23,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:23,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:23,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:23,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:13:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:23,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:23,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:23,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:23,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:23,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:13:23,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:23,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:23,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:23,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:23,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:23,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:13:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:23,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:23,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:23,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:23,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:23,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:13:23,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:23,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:23,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:23,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:23,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:23,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 12:13:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:23,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:23,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:23,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:23,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:23,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:13:23,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:23,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:23,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:23,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:23,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:23,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:13:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:23,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:23,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:23,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:13:23,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:23,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:13:23,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:23,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:23,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:23,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:13:23,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:23,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:13:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:23,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:23,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:23,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:23,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:23,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:13:23,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:23,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:23,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:23,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:23,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:23,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 12:13:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:23,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:23,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:23,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:23,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:23,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:13:23,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:23,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:23,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 12:13:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:23,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:23,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:23,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:23,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:23,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:13:23,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:23,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:23,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:23,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:23,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:23,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-21 12:13:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:23,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:23,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:23,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:23,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:23,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:13:23,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:23,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:23,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:23,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:23,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:23,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:13:23,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [468198412] [2020-09-21 12:13:23,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:13:23,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 12:13:23,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425287251] [2020-09-21 12:13:23,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:13:23,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:13:23,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:13:23,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:13:23,618 INFO L87 Difference]: Start difference. First operand 734 states and 915 transitions. Second operand 6 states. [2020-09-21 12:13:24,021 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:13:26,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:13:26,231 INFO L93 Difference]: Finished difference Result 1832 states and 2431 transitions. [2020-09-21 12:13:26,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 12:13:26,231 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 71 [2020-09-21 12:13:26,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:13:26,240 INFO L225 Difference]: With dead ends: 1832 [2020-09-21 12:13:26,240 INFO L226 Difference]: Without dead ends: 1122 [2020-09-21 12:13:26,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:13:26,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2020-09-21 12:13:26,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1040. [2020-09-21 12:13:26,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2020-09-21 12:13:26,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1299 transitions. [2020-09-21 12:13:26,433 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1299 transitions. Word has length 71 [2020-09-21 12:13:26,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:13:26,434 INFO L479 AbstractCegarLoop]: Abstraction has 1040 states and 1299 transitions. [2020-09-21 12:13:26,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:13:26,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1299 transitions. [2020-09-21 12:13:26,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 12:13:26,436 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:13:26,436 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] [2020-09-21 12:13:26,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:13:26,436 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:13:26,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:13:26,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1064344695, now seen corresponding path program 1 times [2020-09-21 12:13:26,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:13:26,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [291508782] [2020-09-21 12:13:26,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:13:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 12:13:26,497 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 12:13:26,498 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 12:13:26,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:13:26,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:13:26 BoogieIcfgContainer [2020-09-21 12:13:26,529 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:13:26,531 INFO L168 Benchmark]: Toolchain (without parser) took 28195.71 ms. Allocated memory was 139.5 MB in the beginning and 631.2 MB in the end (delta: 491.8 MB). Free memory was 100.3 MB in the beginning and 309.8 MB in the end (delta: -209.5 MB). Peak memory consumption was 282.3 MB. Max. memory is 7.1 GB. [2020-09-21 12:13:26,532 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 12:13:26,533 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.36 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 99.6 MB in the beginning and 171.5 MB in the end (delta: -71.9 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2020-09-21 12:13:26,534 INFO L168 Benchmark]: Boogie Preprocessor took 109.70 ms. Allocated memory is still 203.4 MB. Free memory was 171.5 MB in the beginning and 167.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-21 12:13:26,535 INFO L168 Benchmark]: RCFGBuilder took 1310.53 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 167.5 MB in the beginning and 195.0 MB in the end (delta: -27.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2020-09-21 12:13:26,536 INFO L168 Benchmark]: TraceAbstraction took 26015.53 ms. Allocated memory was 235.9 MB in the beginning and 631.2 MB in the end (delta: 395.3 MB). Free memory was 193.6 MB in the beginning and 309.8 MB in the end (delta: -116.2 MB). Peak memory consumption was 279.1 MB. Max. memory is 7.1 GB. [2020-09-21 12:13:26,540 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 750.36 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 99.6 MB in the beginning and 171.5 MB in the end (delta: -71.9 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.70 ms. Allocated memory is still 203.4 MB. Free memory was 171.5 MB in the beginning and 167.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1310.53 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 167.5 MB in the beginning and 195.0 MB in the end (delta: -27.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26015.53 ms. Allocated memory was 235.9 MB in the beginning and 631.2 MB in the end (delta: 395.3 MB). Free memory was 193.6 MB in the beginning and 309.8 MB in the end (delta: -116.2 MB). Peak memory consumption was 279.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 694]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L414] int waterLevel = 1; [L415] int methaneLevelCritical = 0; [L517] int cleanupTimeShifts = 4; [L769] int pumpRunning = 0; [L770] int systemActive = 1; [L596] int retValue_acc ; [L597] int tmp ; [L601] FCALL select_helpers() [L602] FCALL select_features() [L603] CALL, EXPR valid_product() [L645] int retValue_acc ; [L648] retValue_acc = 1 [L649] return (retValue_acc); [L603] RET, EXPR valid_product() [L603] tmp = valid_product() [L605] COND TRUE \read(tmp) [L607] FCALL setup() [L608] CALL runTest() [L587] CALL test() [L701] int splverifierCounter ; [L702] int tmp ; [L703] int tmp___0 ; [L704] int tmp___1 ; [L705] int tmp___2 ; [L708] splverifierCounter = 0 [L710] COND TRUE 1 [L712] COND TRUE splverifierCounter < 4 [L718] tmp = __VERIFIER_nondet_int() [L720] COND TRUE \read(tmp) [L722] CALL waterRise() [L432] COND TRUE waterLevel < 2 [L433] waterLevel = waterLevel + 1 [L722] RET waterRise() [L728] tmp___0 = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp___0)) [L738] tmp___2 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___2)) [L744] tmp___1 = __VERIFIER_nondet_int() [L746] COND TRUE \read(tmp___1) [L748] CALL stopSystem() [L987] COND FALSE !(\read(pumpRunning)) [L994] systemActive = 0 [L748] RET stopSystem() [L755] CALL timeShift() [L776] COND FALSE !(\read(pumpRunning)) [L783] COND FALSE !(\read(systemActive)) [L791] CALL __utac_acc__Specification3_spec__1() [L657] int tmp ; [L658] int tmp___0 ; [L659] int tmp___1 ; [L663] CALL, EXPR isMethaneLevelCritical() [L453] int retValue_acc ; [L456] retValue_acc = methaneLevelCritical [L457] return (retValue_acc); [L663] RET, EXPR isMethaneLevelCritical() [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L669] CALL, EXPR getWaterLevel() [L485] int retValue_acc ; [L488] retValue_acc = waterLevel [L489] return (retValue_acc); [L669] RET, EXPR getWaterLevel() [L669] tmp___0 = getWaterLevel() [L671] COND TRUE tmp___0 == 2 [L673] CALL, EXPR isPumpRunning() [L901] int retValue_acc ; [L904] retValue_acc = pumpRunning [L905] return (retValue_acc); [L673] RET, EXPR isPumpRunning() [L673] tmp___1 = isPumpRunning() [L675] COND FALSE !(\read(tmp___1)) [L679] CALL __automaton_fail() [L694] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 251 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 25.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 16.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 708 SDtfs, 1211 SDslu, 407 SDs, 0 SdLazy, 2407 SolverSat, 707 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 137 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1040occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 297 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 363 NumberOfCodeBlocks, 363 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 291 ConstructedInterpolants, 0 QuantifiedInterpolants, 83414 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...