/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_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:10:26,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:10:26,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:10:26,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:10:26,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:10:26,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:10:26,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:10:26,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:10:26,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:10:26,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:10:26,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:10:26,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:10:26,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:10:26,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:10:26,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:10:26,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:10:26,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:10:26,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:10:26,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:10:26,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:10:26,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:10:26,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:10:26,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:10:26,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:10:26,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:10:26,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:10:26,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:10:26,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:10:26,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:10:26,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:10:26,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:10:26,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:10:26,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:10:26,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:10:26,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:10:26,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:10:26,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:10:26,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:10:26,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:10:26,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:10:26,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:10:26,753 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 11:10:26,790 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:10:26,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:10:26,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:10:26,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:10:26,792 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:10:26,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:10:26,793 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:10:26,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:10:26,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:10:26,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:10:26,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:10:26,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:10:26,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:10:26,795 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:10:26,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:10:26,795 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:10:26,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:10:26,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:10:26,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:10:26,796 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:10:26,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:10:26,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:10:26,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:10:26,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:10:26,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:10:26,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:10:26,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:10:26,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:10:26,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:10:26,798 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 11:10:27,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:10:27,296 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:10:27,300 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:10:27,302 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:10:27,304 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:10:27,305 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-09-21 11:10:27,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/424606fa6/817455742f8948fd92bb2a688cc4e4fe/FLAG9ade835dc [2020-09-21 11:10:28,043 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:10:28,044 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-09-21 11:10:28,058 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/424606fa6/817455742f8948fd92bb2a688cc4e4fe/FLAG9ade835dc [2020-09-21 11:10:28,370 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/424606fa6/817455742f8948fd92bb2a688cc4e4fe [2020-09-21 11:10:28,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:10:28,392 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:10:28,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:10:28,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:10:28,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:10:28,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:10:28" (1/1) ... [2020-09-21 11:10:28,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b7bdc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:28, skipping insertion in model container [2020-09-21 11:10:28,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:10:28" (1/1) ... [2020-09-21 11:10:28,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:10:28,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:10:28,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:10:28,934 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:10:29,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:10:29,135 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:10:29,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:29 WrapperNode [2020-09-21 11:10:29,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:10:29,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:10:29,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:10:29,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:10:29,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:29" (1/1) ... [2020-09-21 11:10:29,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:29" (1/1) ... [2020-09-21 11:10:29,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:29" (1/1) ... [2020-09-21 11:10:29,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:29" (1/1) ... [2020-09-21 11:10:29,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:29" (1/1) ... [2020-09-21 11:10:29,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:29" (1/1) ... [2020-09-21 11:10:29,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:29" (1/1) ... [2020-09-21 11:10:29,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:10:29,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:10:29,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:10:29,233 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:10:29,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:10:29,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:10:29,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:10:29,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:10:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:10:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:10:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:10:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:10:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:10:29,345 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:10:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:10:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:10:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:10:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:10:29,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:10:29,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:10:29,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:10:29,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:10:29,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:10:29,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:10:29,349 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:10:29,349 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:10:29,349 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:10:29,349 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 11:10:29,349 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:10:29,349 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-21 11:10:29,351 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:10:29,351 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:10:29,351 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:10:29,351 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:10:29,351 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:10:29,351 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:10:29,351 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 11:10:29,352 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:10:29,352 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:10:29,352 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:10:29,352 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:10:29,352 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:10:29,352 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:10:29,353 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:10:29,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:10:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:10:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:10:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:10:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:10:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:10:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:10:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:10:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:10:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:10:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:10:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:10:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:10:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:10:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:10:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:10:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:10:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:10:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:10:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:10:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:10:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:10:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:10:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:10:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:10:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:10:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:10:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:10:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:10:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:10:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:10:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:10:29,359 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:10:29,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:10:29,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:10:29,361 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:10:29,361 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 11:10:29,361 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:10:29,361 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:10:29,361 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:10:29,361 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:10:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:10:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:10:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:10:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:10:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:10:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:10:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:10:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 11:10:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:10:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-21 11:10:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:10:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:10:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:10:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:10:30,520 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:10:30,521 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:10:30,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:10:30 BoogieIcfgContainer [2020-09-21 11:10:30,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:10:30,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:10:30,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:10:30,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:10:30,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:10:28" (1/3) ... [2020-09-21 11:10:30,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d675df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:10:30, skipping insertion in model container [2020-09-21 11:10:30,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:29" (2/3) ... [2020-09-21 11:10:30,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d675df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:10:30, skipping insertion in model container [2020-09-21 11:10:30,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:10:30" (3/3) ... [2020-09-21 11:10:30,544 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2020-09-21 11:10:30,556 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:10:30,570 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:10:30,594 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:10:30,637 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:10:30,638 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:10:30,638 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:10:30,638 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:10:30,638 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:10:30,638 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:10:30,638 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:10:30,639 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:10:30,676 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states. [2020-09-21 11:10:30,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:10:30,697 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:30,699 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 11:10:30,699 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:30,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:30,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1671120280, now seen corresponding path program 1 times [2020-09-21 11:10:30,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:30,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [670610756] [2020-09-21 11:10:30,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:31,175 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:31,178 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:31,178 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:31,179 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:31,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:10:31,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:31,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:10:31,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:31,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:31,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:10:31,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:31,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:31,677 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:31,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:31,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:31,694 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:31,694 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:31,695 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:31,695 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:31,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:31,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:31,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:31,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:31,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:31,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:31,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:31,753 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:31,753 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:31,754 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:31,754 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:31,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:31,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:31,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:31,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:31,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:31,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:31,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:31,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:31,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:31,760 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:31,761 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:31,761 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:31,761 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:31,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:31,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:31,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:31,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:31,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:31,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:31,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:31,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:31,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:31,768 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:31,768 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:31,769 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:31,769 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:31,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:31,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:31,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:31,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:31,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:31,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:31,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:31,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:31,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:31,776 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:31,776 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:31,776 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:31,777 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:31,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:31,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:31,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:31,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:31,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:31,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:31,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:31,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:31,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:10:31,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:31,784 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:31,784 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:31,784 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:31,784 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:31,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:31,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:31,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:31,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:31,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:31,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:31,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:31,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:31,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:10:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:31,827 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:31,827 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:31,827 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:31,828 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:31,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:31,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:31,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:31,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:31,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:31,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:31,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:31,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:31,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:10:31,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:31,834 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:31,834 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:31,834 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:31,835 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:31,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:31,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:31,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:31,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:31,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:31,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:31,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:31,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:31,852 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 11:10:31,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [670610756] [2020-09-21 11:10:31,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:31,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:10:31,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159632096] [2020-09-21 11:10:31,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:10:31,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:31,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:10:31,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:10:31,887 INFO L87 Difference]: Start difference. First operand 185 states. Second operand 3 states. [2020-09-21 11:10:33,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:33,150 INFO L93 Difference]: Finished difference Result 329 states and 431 transitions. [2020-09-21 11:10:33,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:10:33,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 11:10:33,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:33,171 INFO L225 Difference]: With dead ends: 329 [2020-09-21 11:10:33,172 INFO L226 Difference]: Without dead ends: 178 [2020-09-21 11:10:33,178 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 11:10:33,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-21 11:10:33,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 142. [2020-09-21 11:10:33,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-21 11:10:33,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 169 transitions. [2020-09-21 11:10:33,282 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 169 transitions. Word has length 52 [2020-09-21 11:10:33,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:33,283 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 169 transitions. [2020-09-21 11:10:33,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:10:33,283 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 169 transitions. [2020-09-21 11:10:33,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 11:10:33,288 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:33,288 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 11:10:33,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:10:33,289 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:33,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:33,289 INFO L82 PathProgramCache]: Analyzing trace with hash -374509178, now seen corresponding path program 1 times [2020-09-21 11:10:33,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:33,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2054668003] [2020-09-21 11:10:33,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,356 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,357 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,357 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,357 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:10:33,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:10:33,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:33,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:10:33,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:10:33,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:33,640 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:33,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,649 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,649 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,649 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,649 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:33,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:33,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:33,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:33,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:33,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,688 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,689 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,689 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,689 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:33,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:33,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:33,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:33,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:33,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,694 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,694 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,694 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,694 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:33,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:33,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:33,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:33,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:33,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,698 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,698 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,699 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,699 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:33,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:33,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:33,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:33,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:33,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,703 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,704 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,704 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,704 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:33,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:33,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:33,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:33,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:33,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,708 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,708 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,709 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,709 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:33,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:33,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:33,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:33,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:33,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:10:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,713 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,714 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,714 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,714 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:33,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:33,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:33,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:33,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:33,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:10:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,719 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,719 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,719 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,720 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:33,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:33,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:33,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:33,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:33,728 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 11:10:33,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2054668003] [2020-09-21 11:10:33,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:33,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:33,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599664959] [2020-09-21 11:10:33,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:33,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:33,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:33,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:33,732 INFO L87 Difference]: Start difference. First operand 142 states and 169 transitions. Second operand 4 states. [2020-09-21 11:10:34,214 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:10:35,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:35,229 INFO L93 Difference]: Finished difference Result 256 states and 314 transitions. [2020-09-21 11:10:35,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:35,230 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 11:10:35,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:35,235 INFO L225 Difference]: With dead ends: 256 [2020-09-21 11:10:35,235 INFO L226 Difference]: Without dead ends: 162 [2020-09-21 11:10:35,237 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 11:10:35,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-09-21 11:10:35,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 133. [2020-09-21 11:10:35,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-09-21 11:10:35,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 157 transitions. [2020-09-21 11:10:35,279 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 157 transitions. Word has length 53 [2020-09-21 11:10:35,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:35,280 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 157 transitions. [2020-09-21 11:10:35,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:35,280 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 157 transitions. [2020-09-21 11:10:35,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:10:35,282 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:35,283 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 11:10:35,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:10:35,283 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:35,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:35,283 INFO L82 PathProgramCache]: Analyzing trace with hash 299348801, now seen corresponding path program 1 times [2020-09-21 11:10:35,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:35,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923625804] [2020-09-21 11:10:35,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:35,798 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:10:35,798 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:35,799 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:35,799 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:35,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:10:35,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:35,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 457 [2020-09-21 11:10:35,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:35,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:10:35,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:35,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:10:35,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:36,109 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:36,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:36,192 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:36,192 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:36,192 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:36,193 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:36,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:36,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:36,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-21 11:10:36,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:36,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:36,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:36,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:36,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:36,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:36,238 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:36,239 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:36,239 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:36,239 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:36,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:36,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:36,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:36,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:36,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:36,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:36,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:36,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:36,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:36,247 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:36,248 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:36,248 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:36,248 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:36,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:36,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:36,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:36,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:36,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:36,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:36,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:36,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:36,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:36,255 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:36,256 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:36,256 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:36,256 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:36,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:36,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:36,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:36,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:36,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:36,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:36,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:36,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:36,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:36,263 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:36,263 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:36,263 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:36,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:36,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:36,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:36,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:36,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:36,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:36,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:36,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:36,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:36,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:10:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:36,269 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:36,269 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:36,269 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:36,270 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:36,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:36,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:36,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:36,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:36,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:36,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:36,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:36,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:36,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:10:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:36,275 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:36,275 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:36,275 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:36,304 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:36,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:36,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:36,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 11:10:36,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:36,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:36,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:36,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:36,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:36,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:10:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:36,314 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:36,314 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:36,314 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:36,314 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:36,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:36,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:36,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:36,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:36,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:36,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:36,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:36,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:36,325 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 11:10:36,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923625804] [2020-09-21 11:10:36,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:36,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:36,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624219407] [2020-09-21 11:10:36,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:36,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:36,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:36,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:36,329 INFO L87 Difference]: Start difference. First operand 133 states and 157 transitions. Second operand 4 states. [2020-09-21 11:10:36,699 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:38,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:38,481 INFO L93 Difference]: Finished difference Result 394 states and 489 transitions. [2020-09-21 11:10:38,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:38,481 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-09-21 11:10:38,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:38,487 INFO L225 Difference]: With dead ends: 394 [2020-09-21 11:10:38,487 INFO L226 Difference]: Without dead ends: 285 [2020-09-21 11:10:38,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 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 11:10:38,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-09-21 11:10:38,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 236. [2020-09-21 11:10:38,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-09-21 11:10:38,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 285 transitions. [2020-09-21 11:10:38,569 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 285 transitions. Word has length 57 [2020-09-21 11:10:38,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:38,569 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 285 transitions. [2020-09-21 11:10:38,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:38,569 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 285 transitions. [2020-09-21 11:10:38,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-21 11:10:38,572 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:38,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:10:38,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:10:38,573 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:38,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:38,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1748947784, now seen corresponding path program 1 times [2020-09-21 11:10:38,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:38,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615465999] [2020-09-21 11:10:38,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:39,076 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:39,077 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:39,077 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:39,078 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:39,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 11:10:39,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:39,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 457 [2020-09-21 11:10:39,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:39,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:10:39,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:39,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 11:10:39,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:39,436 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:39,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:39,525 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:39,525 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:39,525 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:39,526 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:39,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:39,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:39,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-21 11:10:39,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:39,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:39,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:39,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:39,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:39,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:39,572 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:39,572 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:39,572 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:39,573 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:39,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:39,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:39,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:39,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:39,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:39,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:39,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:39,578 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:39,578 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:39,578 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:39,579 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:39,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:39,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:39,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:39,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:39,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:39,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:39,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:39,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:39,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:39,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:39,584 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:39,584 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:39,585 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:39,585 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:39,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:39,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:39,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:39,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:39,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:39,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:39,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:39,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:39,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:39,591 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:39,591 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:39,591 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:39,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:39,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:39,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:39,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:39,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:39,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:39,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:39,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:39,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:39,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:39,610 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:39,611 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:39,611 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:39,611 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:39,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:10:39,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:39,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:39,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:10:39,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:39,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:10:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:39,617 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:39,618 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:39,618 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:39,618 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:39,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:39,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:39,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:39,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:39,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:39,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:39,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:39,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:39,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:10:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:39,626 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:39,626 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:39,626 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:39,626 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:39,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:39,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:39,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:10:39,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:39,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:10:39,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:39,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:39,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:39,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 11:10:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:39,642 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:39,642 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:39,642 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:39,642 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:39,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:39,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:39,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:39,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:39,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:39,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:39,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:39,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:39,653 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 11:10:39,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1615465999] [2020-09-21 11:10:39,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:39,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:10:39,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356970360] [2020-09-21 11:10:39,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:10:39,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:39,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:10:39,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:10:39,655 INFO L87 Difference]: Start difference. First operand 236 states and 285 transitions. Second operand 8 states. [2020-09-21 11:10:40,086 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:41,726 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:42,202 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:42,524 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:42,834 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:43,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:43,705 INFO L93 Difference]: Finished difference Result 736 states and 964 transitions. [2020-09-21 11:10:43,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:10:43,705 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-09-21 11:10:43,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:43,711 INFO L225 Difference]: With dead ends: 736 [2020-09-21 11:10:43,712 INFO L226 Difference]: Without dead ends: 524 [2020-09-21 11:10:43,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 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 11:10:43,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-09-21 11:10:43,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 455. [2020-09-21 11:10:43,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2020-09-21 11:10:43,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 559 transitions. [2020-09-21 11:10:43,844 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 559 transitions. Word has length 63 [2020-09-21 11:10:43,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:43,845 INFO L479 AbstractCegarLoop]: Abstraction has 455 states and 559 transitions. [2020-09-21 11:10:43,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:10:43,845 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 559 transitions. [2020-09-21 11:10:43,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:10:43,849 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:43,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:10:43,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:10:43,850 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:43,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:43,850 INFO L82 PathProgramCache]: Analyzing trace with hash -145060242, now seen corresponding path program 1 times [2020-09-21 11:10:43,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:43,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605909379] [2020-09-21 11:10:43,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:10:43,914 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:10:43,914 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:10:43,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:10:43,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:10:43 BoogieIcfgContainer [2020-09-21 11:10:43,946 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:10:43,948 INFO L168 Benchmark]: Toolchain (without parser) took 15560.90 ms. Allocated memory was 147.8 MB in the beginning and 504.9 MB in the end (delta: 357.0 MB). Free memory was 101.9 MB in the beginning and 400.4 MB in the end (delta: -298.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:43,949 INFO L168 Benchmark]: CDTParser took 0.90 ms. Allocated memory is still 147.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:10:43,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.85 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 101.2 MB in the beginning and 170.3 MB in the end (delta: -69.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:43,951 INFO L168 Benchmark]: Boogie Preprocessor took 95.82 ms. Allocated memory is still 204.5 MB. Free memory was 170.3 MB in the beginning and 166.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:43,952 INFO L168 Benchmark]: RCFGBuilder took 1300.09 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 166.4 MB in the beginning and 188.0 MB in the end (delta: -21.6 MB). Peak memory consumption was 78.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:43,952 INFO L168 Benchmark]: TraceAbstraction took 13411.36 ms. Allocated memory was 234.9 MB in the beginning and 504.9 MB in the end (delta: 270.0 MB). Free memory was 188.0 MB in the beginning and 400.4 MB in the end (delta: -212.4 MB). Peak memory consumption was 57.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:43,957 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.90 ms. Allocated memory is still 147.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 742.85 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 101.2 MB in the beginning and 170.3 MB in the end (delta: -69.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.82 ms. Allocated memory is still 204.5 MB. Free memory was 170.3 MB in the beginning and 166.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1300.09 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 166.4 MB in the beginning and 188.0 MB in the end (delta: -21.6 MB). Peak memory consumption was 78.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13411.36 ms. Allocated memory was 234.9 MB in the beginning and 504.9 MB in the end (delta: 270.0 MB). Free memory was 188.0 MB in the beginning and 400.4 MB in the end (delta: -212.4 MB). Peak memory consumption was 57.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L629] int pumpRunning = 0; [L630] int systemActive = 1; [L841] int waterLevel = 1; [L842] int methaneLevelCritical = 0; [L130] int retValue_acc ; [L131] int tmp ; [L135] FCALL select_helpers() [L136] FCALL select_features() [L137] CALL, EXPR valid_product() [L179] int retValue_acc ; [L182] retValue_acc = 1 [L183] return (retValue_acc); [L137] RET, EXPR valid_product() [L137] tmp = valid_product() [L139] COND TRUE \read(tmp) [L141] FCALL setup() [L142] CALL runTest() [L121] CALL test() [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] splverifierCounter = 0 [L565] COND TRUE 1 [L567] COND TRUE splverifierCounter < 4 [L573] tmp = __VERIFIER_nondet_int() [L575] COND TRUE \read(tmp) [L577] CALL waterRise() [L859] COND TRUE waterLevel < 2 [L860] waterLevel = waterLevel + 1 [L577] RET waterRise() [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND FALSE !(\read(tmp___2)) [L599] tmp___1 = __VERIFIER_nondet_int() [L601] COND TRUE \read(tmp___1) [L603] CALL stopSystem() [L828] COND FALSE !(\read(pumpRunning)) [L835] systemActive = 0 [L603] RET stopSystem() [L610] CALL timeShift() [L637] COND FALSE !(\read(pumpRunning)) [L644] COND FALSE !(\read(systemActive)) [L652] CALL __utac_acc__Specification3_spec__1() [L936] int tmp ; [L937] int tmp___0 ; [L938] int tmp___1 ; [L942] CALL, EXPR isMethaneLevelCritical() [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); [L942] RET, EXPR isMethaneLevelCritical() [L942] tmp = isMethaneLevelCritical() [L944] COND FALSE !(\read(tmp)) [L948] CALL, EXPR getWaterLevel() [L912] int retValue_acc ; [L915] retValue_acc = waterLevel [L916] return (retValue_acc); [L948] RET, EXPR getWaterLevel() [L948] tmp___0 = getWaterLevel() [L950] COND TRUE tmp___0 == 2 [L952] CALL, EXPR isPumpRunning() [L761] int retValue_acc ; [L764] retValue_acc = pumpRunning [L765] return (retValue_acc); [L952] RET, EXPR isPumpRunning() [L952] tmp___1 = isPumpRunning() [L954] COND FALSE !(\read(tmp___1)) [L958] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 241 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 544 SDtfs, 810 SDslu, 254 SDs, 0 SdLazy, 1347 SolverSat, 489 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=455occurred 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 183 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 60460 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...