/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 interpolation-heuristic=FIRST --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_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:09:48,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:09:48,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:09:48,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:09:48,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:09:48,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:09:48,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:09:48,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:09:48,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:09:48,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:09:48,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:09:48,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:09:48,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:09:48,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:09:48,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:09:48,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:09:48,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:09:48,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:09:48,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:09:48,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:09:48,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:09:48,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:09:48,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:09:48,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:09:48,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:09:48,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:09:48,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:09:48,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:09:48,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:09:48,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:09:48,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:09:48,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:09:48,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:09:48,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:09:48,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:09:48,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:09:48,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:09:48,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:09:48,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:09:48,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:09:48,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:09:48,750 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 11:09:48,796 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:09:48,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:09:48,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:09:48,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:09:48,799 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:09:48,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:09:48,800 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:09:48,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:09:48,800 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:09:48,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:09:48,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:09:48,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:09:48,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:09:48,802 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:09:48,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:09:48,803 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:09:48,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:09:48,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:09:48,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:09:48,804 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:09:48,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:09:48,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:09:48,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:09:48,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:09:48,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:09:48,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:09:48,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:09:48,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:09:48,805 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:09:48,806 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:09:49,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:09:49,249 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:09:49,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:09:49,256 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:09:49,257 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:09:49,258 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c [2020-09-21 11:09:49,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfd3a4313/a0bd152ac23640ad9518e797a8f0e1f3/FLAG248f76257 [2020-09-21 11:09:49,975 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:09:49,976 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c [2020-09-21 11:09:49,991 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfd3a4313/a0bd152ac23640ad9518e797a8f0e1f3/FLAG248f76257 [2020-09-21 11:09:50,273 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfd3a4313/a0bd152ac23640ad9518e797a8f0e1f3 [2020-09-21 11:09:50,287 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:09:50,291 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:09:50,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:09:50,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:09:50,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:09:50,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:09:50" (1/1) ... [2020-09-21 11:09:50,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4147517c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:50, skipping insertion in model container [2020-09-21 11:09:50,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:09:50" (1/1) ... [2020-09-21 11:09:50,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:09:50,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:09:50,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:09:50,983 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:09:51,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:09:51,139 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:09:51,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:51 WrapperNode [2020-09-21 11:09:51,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:09:51,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:09:51,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:09:51,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:09:51,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:51" (1/1) ... [2020-09-21 11:09:51,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:51" (1/1) ... [2020-09-21 11:09:51,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:51" (1/1) ... [2020-09-21 11:09:51,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:51" (1/1) ... [2020-09-21 11:09:51,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:51" (1/1) ... [2020-09-21 11:09:51,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:51" (1/1) ... [2020-09-21 11:09:51,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:51" (1/1) ... [2020-09-21 11:09:51,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:09:51,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:09:51,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:09:51,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:09:51,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:51" (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 11:09:51,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:09:51,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:09:51,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:09:51,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:09:51,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:09:51,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:09:51,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:09:51,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:09:51,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:09:51,312 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:09:51,313 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:09:51,313 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:09:51,313 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:09:51,313 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:09:51,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:09:51,314 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 11:09:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:09:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:09:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:09:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:09:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:09:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:09:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:09:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:09:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:09:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:09:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 11:09:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:09:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:09:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:09:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:09:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:09:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:09:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:09:51,319 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:09:51,319 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:09:51,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:09:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:09:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:09:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:09:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:09:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:09:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:09:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:09:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:09:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:09:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:09:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:09:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:09:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:09:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:09:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:09:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:09:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:09:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:09:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:09:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:09:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:09:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:09:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:09:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:09:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:09:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:09:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 11:09:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:09:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:09:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:09:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:09:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:09:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:09:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:09:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:09:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:09:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:09:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:09:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 11:09:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:09:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:09:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:09:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:09:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:09:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:09:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:09:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:09:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:09:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:09:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:09:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:09:52,395 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:09:52,395 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:09:52,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:09:52 BoogieIcfgContainer [2020-09-21 11:09:52,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:09:52,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:09:52,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:09:52,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:09:52,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:09:50" (1/3) ... [2020-09-21 11:09:52,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffd377e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:09:52, skipping insertion in model container [2020-09-21 11:09:52,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:51" (2/3) ... [2020-09-21 11:09:52,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffd377e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:09:52, skipping insertion in model container [2020-09-21 11:09:52,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:09:52" (3/3) ... [2020-09-21 11:09:52,411 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product17.cil.c [2020-09-21 11:09:52,423 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:09:52,434 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:09:52,457 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:09:52,490 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:09:52,490 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:09:52,490 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:09:52,490 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:09:52,491 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:09:52,491 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:09:52,491 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:09:52,491 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:09:52,519 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-09-21 11:09:52,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:09:52,532 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:52,533 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 11:09:52,533 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:52,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:52,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1926070200, now seen corresponding path program 1 times [2020-09-21 11:09:52,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:52,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697851029] [2020-09-21 11:09:52,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:52,949 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:52,949 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:52,949 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:52,950 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:52,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:09:52,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:52,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:09:52,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:52,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:52,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:09:52,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:52,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:53,408 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:53,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:53,425 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:53,426 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:53,426 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:53,426 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:53,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:53,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:53,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:53,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:53,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:53,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:53,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:53,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:53,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:53,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:53,487 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:53,487 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:53,487 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:53,488 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:53,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:53,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:53,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:53,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:53,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:53,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:53,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:53,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:53,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:53,494 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:53,494 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:53,495 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:53,495 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:53,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:53,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:53,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:53,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:53,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:53,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:53,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:53,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:53,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:53,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:53,502 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:53,502 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:53,503 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:53,503 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:53,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:53,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:53,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:53,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:53,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:53,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:53,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:53,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:53,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:53,510 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:53,510 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:53,510 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:53,511 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:53,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:53,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:53,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:53,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:53,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:53,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:53,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:53,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:09:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:53,517 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:53,518 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:53,518 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:53,518 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:53,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:53,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:53,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:53,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:53,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:53,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:53,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:53,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:53,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:09:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:53,526 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:53,526 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:53,527 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:53,527 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:53,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:53,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:53,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:53,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:53,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:53,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:53,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:53,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:53,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:09:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:53,535 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:53,535 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:53,536 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:53,536 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:53,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:53,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:53,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:53,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:53,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:53,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:53,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:53,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:53,583 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 11:09:53,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697851029] [2020-09-21 11:09:53,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:53,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:09:53,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745089799] [2020-09-21 11:09:53,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:09:53,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:53,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:09:53,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:09:53,619 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 3 states. [2020-09-21 11:09:54,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:54,630 INFO L93 Difference]: Finished difference Result 259 states and 341 transitions. [2020-09-21 11:09:54,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:09:54,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 11:09:54,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:54,653 INFO L225 Difference]: With dead ends: 259 [2020-09-21 11:09:54,653 INFO L226 Difference]: Without dead ends: 140 [2020-09-21 11:09:54,659 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 11:09:54,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-09-21 11:09:54,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 110. [2020-09-21 11:09:54,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-09-21 11:09:54,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 128 transitions. [2020-09-21 11:09:54,752 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 128 transitions. Word has length 52 [2020-09-21 11:09:54,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:54,753 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 128 transitions. [2020-09-21 11:09:54,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:09:54,754 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 128 transitions. [2020-09-21 11:09:54,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 11:09:54,758 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:54,758 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 11:09:54,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:09:54,759 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:54,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:54,760 INFO L82 PathProgramCache]: Analyzing trace with hash 475112747, now seen corresponding path program 1 times [2020-09-21 11:09:54,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:54,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924697236] [2020-09-21 11:09:54,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:54,833 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:54,833 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:54,834 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:54,834 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:54,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:09:54,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:54,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:09:54,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:54,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:54,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:09:54,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:09:54,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:55,160 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:55,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:55,169 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:55,170 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:55,170 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:55,170 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:55,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:55,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:55,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:55,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:55,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:55,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:55,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:55,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:55,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:55,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:55,207 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:55,207 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:55,207 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:55,207 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:55,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:55,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:55,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:55,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:55,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:55,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:55,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:55,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:55,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:55,212 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:55,212 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:55,213 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:55,213 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:55,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:55,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:55,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:55,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:55,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:55,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:55,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:55,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:55,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:55,217 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:55,218 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:55,218 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:55,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:55,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:55,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:55,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:55,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:55,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:55,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:55,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:55,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:55,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:55,223 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:55,223 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:55,223 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:55,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:55,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:55,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:55,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:55,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:55,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:55,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:55,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:55,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:55,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:09:55,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:55,228 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:55,228 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:55,229 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:55,229 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:55,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:55,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:55,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:55,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:55,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:55,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:55,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:55,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:55,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:09:55,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:55,234 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:55,234 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:55,234 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:55,235 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:55,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:55,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:55,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:55,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:55,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:55,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:55,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:55,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:55,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:09:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:55,240 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:55,240 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:55,240 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:55,241 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:55,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:55,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:55,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:55,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:55,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:55,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:55,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:55,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:55,250 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 11:09:55,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924697236] [2020-09-21 11:09:55,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:55,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:09:55,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354300811] [2020-09-21 11:09:55,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:09:55,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:55,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:09:55,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:09:55,255 INFO L87 Difference]: Start difference. First operand 110 states and 128 transitions. Second operand 4 states. [2020-09-21 11:09:55,682 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:09:56,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:56,446 INFO L93 Difference]: Finished difference Result 192 states and 232 transitions. [2020-09-21 11:09:56,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:09:56,447 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 11:09:56,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:56,450 INFO L225 Difference]: With dead ends: 192 [2020-09-21 11:09:56,451 INFO L226 Difference]: Without dead ends: 124 [2020-09-21 11:09:56,452 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 11:09:56,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-21 11:09:56,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 101. [2020-09-21 11:09:56,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-21 11:09:56,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 116 transitions. [2020-09-21 11:09:56,486 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 116 transitions. Word has length 53 [2020-09-21 11:09:56,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:56,487 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 116 transitions. [2020-09-21 11:09:56,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:09:56,487 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-09-21 11:09:56,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:09:56,489 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:56,489 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 11:09:56,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:09:56,490 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:56,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:56,490 INFO L82 PathProgramCache]: Analyzing trace with hash 40226853, now seen corresponding path program 1 times [2020-09-21 11:09:56,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:56,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963539145] [2020-09-21 11:09:56,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:56,615 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:09:56,615 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:56,616 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:56,616 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:56,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:09:56,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:56,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-21 11:09:56,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:56,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:56,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:56,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:09:56,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:57,014 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:57,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,085 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,085 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,086 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:57,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 11:09:57,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:57,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:57,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:09:57,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:57,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,127 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,128 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,128 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,128 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:57,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:57,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:57,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:57,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:57,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:57,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:57,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,134 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,134 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,134 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,134 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:57,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:57,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:57,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:57,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:57,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:57,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,140 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,140 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,141 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,141 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:57,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:57,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:57,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:57,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:57,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:57,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,147 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,147 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,147 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,147 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:57,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:57,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:57,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:57,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:57,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:57,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:09:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,155 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,156 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,156 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,156 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:57,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:57,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:57,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:57,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:57,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:57,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:09:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,161 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,161 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,161 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,162 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:57,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:57,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:57,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:57,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:57,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:57,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:09:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,166 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,166 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,167 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,167 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:57,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:57,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:57,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:57,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:57,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:57,177 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 11:09:57,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963539145] [2020-09-21 11:09:57,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:57,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:09:57,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301970313] [2020-09-21 11:09:57,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:09:57,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:57,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:09:57,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:09:57,180 INFO L87 Difference]: Start difference. First operand 101 states and 116 transitions. Second operand 4 states. [2020-09-21 11:09:57,502 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:58,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:58,254 INFO L93 Difference]: Finished difference Result 201 states and 246 transitions. [2020-09-21 11:09:58,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:09:58,255 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-09-21 11:09:58,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:58,257 INFO L225 Difference]: With dead ends: 201 [2020-09-21 11:09:58,257 INFO L226 Difference]: Without dead ends: 124 [2020-09-21 11:09:58,258 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 11:09:58,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-21 11:09:58,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 101. [2020-09-21 11:09:58,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-21 11:09:58,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2020-09-21 11:09:58,289 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 57 [2020-09-21 11:09:58,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:58,290 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2020-09-21 11:09:58,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:09:58,290 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2020-09-21 11:09:58,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-21 11:09:58,292 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:58,292 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] [2020-09-21 11:09:58,293 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:09:58,293 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:58,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:58,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1164680110, now seen corresponding path program 1 times [2020-09-21 11:09:58,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:58,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652412652] [2020-09-21 11:09:58,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:58,776 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:58,776 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:58,776 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:58,776 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:58,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:09:58,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:58,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-09-21 11:09:58,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:58,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:09:58,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:58,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-21 11:09:58,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:59,121 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:59,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:59,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:59,187 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:59,188 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:59,188 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:59,188 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:59,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:59,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:59,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 11:09:59,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:59,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:59,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:59,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:09:59,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:59,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:59,225 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:59,226 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:59,226 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:59,226 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:59,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:59,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:59,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:59,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:59,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:59,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:59,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:59,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:59,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:59,232 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:59,232 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:59,232 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:59,232 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:59,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:59,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:59,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:59,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:59,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:59,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:59,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:59,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:59,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:59,239 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:59,239 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:59,239 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:59,240 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:59,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:59,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:59,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:59,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:59,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:59,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:59,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:59,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:59,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:59,246 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:59,246 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:59,246 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:59,246 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:59,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:59,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:59,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:59,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:59,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:59,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:59,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:09:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:59,261 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:59,261 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:59,261 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:59,261 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:59,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:09:59,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:59,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:59,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:59,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:59,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:59,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:09:59,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:59,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:09:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:59,266 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:59,266 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:59,266 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:59,267 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:59,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:59,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:59,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:59,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:59,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:59,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:59,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:59,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:59,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:09:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:59,272 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:59,272 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:59,273 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:59,273 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:59,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:59,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:59,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:59,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:59,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:59,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:59,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:59,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:59,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 11:09:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:59,280 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:59,281 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:59,281 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:59,281 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:59,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:59,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:59,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:59,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:59,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:09:59,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:59,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:59,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:59,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 11:09:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:59,297 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:59,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:59,297 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:59,297 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:59,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:59,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:59,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:59,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:59,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:59,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:59,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:59,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:59,309 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 11:09:59,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652412652] [2020-09-21 11:09:59,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:59,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:09:59,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075064664] [2020-09-21 11:09:59,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:09:59,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:59,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:09:59,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:09:59,312 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand 8 states. [2020-09-21 11:09:59,716 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:01,121 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:01,514 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:01,842 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:02,200 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:02,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:02,843 INFO L93 Difference]: Finished difference Result 299 states and 390 transitions. [2020-09-21 11:10:02,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:10:02,845 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-09-21 11:10:02,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:02,850 INFO L225 Difference]: With dead ends: 299 [2020-09-21 11:10:02,850 INFO L226 Difference]: Without dead ends: 222 [2020-09-21 11:10:02,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:10:02,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-09-21 11:10:02,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 176. [2020-09-21 11:10:02,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-09-21 11:10:02,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 207 transitions. [2020-09-21 11:10:02,899 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 207 transitions. Word has length 65 [2020-09-21 11:10:02,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:02,900 INFO L479 AbstractCegarLoop]: Abstraction has 176 states and 207 transitions. [2020-09-21 11:10:02,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:10:02,900 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 207 transitions. [2020-09-21 11:10:02,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-21 11:10:02,903 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:02,903 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] [2020-09-21 11:10:02,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:10:02,903 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:02,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:02,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1251292780, now seen corresponding path program 1 times [2020-09-21 11:10:02,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:02,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861512112] [2020-09-21 11:10:02,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,168 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,168 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,168 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,169 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:10:03,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-09-21 11:10:03,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:10:03,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:03,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-21 11:10:03,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:03,558 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:03,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,647 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,648 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,648 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,649 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:03,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-21 11:10:03,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:03,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:03,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:03,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 83 [2020-09-21 11:10:03,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,771 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,771 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,772 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,772 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:03,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:03,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:03,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:03,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:03,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:03,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,779 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,780 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,780 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,780 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:03,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:03,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:03,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:03,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:03,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:03,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,787 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,788 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,788 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,788 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:03,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:03,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:03,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:03,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:03,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:03,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,796 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,796 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,796 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,797 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:03,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:03,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:03,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:03,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:03,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:03,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:10:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,817 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,817 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,817 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,818 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:03,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:03,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:03,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:03,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:03,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:03,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:10:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,836 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,837 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,837 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,837 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:10:03,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:03,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:03,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:10:03,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:03,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:03,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:10:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,844 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,844 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,844 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,845 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:03,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:03,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:03,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:03,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:10:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,851 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,852 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,852 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,852 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:03,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:03,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:03,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:03,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:03,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:03,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 11:10:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,859 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,859 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,859 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,860 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:03,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:03,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:03,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:03,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:03,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:03,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:10:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,865 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,866 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,866 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:03,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:03,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:03,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:03,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:03,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:03,881 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 11:10:03,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861512112] [2020-09-21 11:10:03,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:03,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:10:03,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716389362] [2020-09-21 11:10:03,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:10:03,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:03,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:10:03,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:10:03,884 INFO L87 Difference]: Start difference. First operand 176 states and 207 transitions. Second operand 6 states. [2020-09-21 11:10:04,253 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:04,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:04,813 INFO L93 Difference]: Finished difference Result 289 states and 355 transitions. [2020-09-21 11:10:04,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:10:04,814 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-09-21 11:10:04,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:04,816 INFO L225 Difference]: With dead ends: 289 [2020-09-21 11:10:04,816 INFO L226 Difference]: Without dead ends: 137 [2020-09-21 11:10:04,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:10:04,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-09-21 11:10:04,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 125. [2020-09-21 11:10:04,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-21 11:10:04,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 140 transitions. [2020-09-21 11:10:04,846 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 140 transitions. Word has length 69 [2020-09-21 11:10:04,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:04,846 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 140 transitions. [2020-09-21 11:10:04,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:10:04,846 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 140 transitions. [2020-09-21 11:10:04,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-21 11:10:04,848 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:04,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:10:04,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:10:04,849 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:04,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:04,849 INFO L82 PathProgramCache]: Analyzing trace with hash 558485620, now seen corresponding path program 1 times [2020-09-21 11:10:04,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:04,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1015884874] [2020-09-21 11:10:04,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:10:04,916 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:10:04,916 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:10:04,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:10:04,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:10:04 BoogieIcfgContainer [2020-09-21 11:10:04,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:10:04,949 INFO L168 Benchmark]: Toolchain (without parser) took 14660.55 ms. Allocated memory was 143.1 MB in the beginning and 426.8 MB in the end (delta: 283.6 MB). Free memory was 102.5 MB in the beginning and 150.6 MB in the end (delta: -48.1 MB). Peak memory consumption was 235.5 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:04,950 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.1 MB. Free memory was 122.1 MB in the beginning and 121.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-21 11:10:04,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 847.34 ms. Allocated memory was 143.1 MB in the beginning and 204.5 MB in the end (delta: 61.3 MB). Free memory was 102.0 MB in the beginning and 171.2 MB in the end (delta: -69.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:04,952 INFO L168 Benchmark]: Boogie Preprocessor took 94.36 ms. Allocated memory is still 204.5 MB. Free memory was 171.2 MB in the beginning and 167.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:04,953 INFO L168 Benchmark]: RCFGBuilder took 1166.49 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 167.3 MB in the beginning and 194.0 MB in the end (delta: -26.7 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:04,954 INFO L168 Benchmark]: TraceAbstraction took 12543.89 ms. Allocated memory was 234.9 MB in the beginning and 426.8 MB in the end (delta: 191.9 MB). Free memory was 194.0 MB in the beginning and 150.6 MB in the end (delta: 43.4 MB). Peak memory consumption was 235.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:04,957 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 143.1 MB. Free memory was 122.1 MB in the beginning and 121.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 847.34 ms. Allocated memory was 143.1 MB in the beginning and 204.5 MB in the end (delta: 61.3 MB). Free memory was 102.0 MB in the beginning and 171.2 MB in the end (delta: -69.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.36 ms. Allocated memory is still 204.5 MB. Free memory was 171.2 MB in the beginning and 167.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1166.49 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 167.3 MB in the beginning and 194.0 MB in the end (delta: -26.7 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12543.89 ms. Allocated memory was 234.9 MB in the beginning and 426.8 MB in the end (delta: 191.9 MB). Free memory was 194.0 MB in the beginning and 150.6 MB in the end (delta: 43.4 MB). Peak memory consumption was 235.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 506]: 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; [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L582] int pumpRunning = 0; [L583] int systemActive = 1; [L735] int cleanupTimeShifts = 4; [L811] int retValue_acc ; [L812] int tmp ; [L816] FCALL select_helpers() [L817] FCALL select_features() [L818] CALL, EXPR valid_product() [L860] int retValue_acc ; [L863] retValue_acc = 1 [L864] return (retValue_acc); [L818] RET, EXPR valid_product() [L818] tmp = valid_product() [L820] COND TRUE \read(tmp) [L822] FCALL setup() [L823] CALL runTest() [L802] CALL test() [L514] int splverifierCounter ; [L515] int tmp ; [L516] int tmp___0 ; [L517] int tmp___1 ; [L518] int tmp___2 ; [L521] splverifierCounter = 0 [L523] COND TRUE 1 [L525] COND TRUE splverifierCounter < 4 [L531] tmp = __VERIFIER_nondet_int() [L533] COND TRUE \read(tmp) [L535] CALL waterRise() [L431] COND TRUE waterLevel < 2 [L432] waterLevel = waterLevel + 1 [L535] RET waterRise() [L541] tmp___0 = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp___0)) [L551] tmp___2 = __VERIFIER_nondet_int() [L553] COND TRUE \read(tmp___2) [L566] CALL timeShift() [L590] COND FALSE !(\read(pumpRunning)) [L597] COND TRUE \read(systemActive) [L599] CALL processEnvironment() [L619] int tmp ; [L622] COND FALSE !(\read(pumpRunning)) [L637] FCALL processEnvironment__wrappee__base() [L599] RET processEnvironment() [L605] CALL __utac_acc__Specification3_spec__1() [L870] int tmp ; [L871] int tmp___0 ; [L872] int tmp___1 ; [L876] CALL, EXPR isMethaneLevelCritical() [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L876] RET, EXPR isMethaneLevelCritical() [L876] tmp = isMethaneLevelCritical() [L878] COND FALSE !(\read(tmp)) [L882] CALL, EXPR getWaterLevel() [L484] int retValue_acc ; [L487] retValue_acc = waterLevel [L488] return (retValue_acc); [L882] RET, EXPR getWaterLevel() [L882] tmp___0 = getWaterLevel() [L884] COND TRUE tmp___0 == 2 [L886] CALL, EXPR isPumpRunning() [L671] int retValue_acc ; [L674] retValue_acc = pumpRunning [L675] return (retValue_acc); [L886] RET, EXPR isPumpRunning() [L886] tmp___1 = isPumpRunning() [L888] COND FALSE !(\read(tmp___1)) [L892] CALL __automaton_fail() [L506] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 217 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 447 SDtfs, 648 SDslu, 203 SDs, 0 SdLazy, 995 SolverSat, 378 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=176occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 134 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 365 NumberOfCodeBlocks, 365 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 291 ConstructedInterpolants, 0 QuantifiedInterpolants, 81318 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...