/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:43:59,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:43:59,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:43:59,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:43:59,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:43:59,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:43:59,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:43:59,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:43:59,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:43:59,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:43:59,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:43:59,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:43:59,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:43:59,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:43:59,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:43:59,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:43:59,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:43:59,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:43:59,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:43:59,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:43:59,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:43:59,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:43:59,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:43:59,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:43:59,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:43:59,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:43:59,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:43:59,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:43:59,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:43:59,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:43:59,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:43:59,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:43:59,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:43:59,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:43:59,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:43:59,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:43:59,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:43:59,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:43:59,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:43:59,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:43:59,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:43:59,783 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:43:59,828 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:43:59,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:43:59,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:43:59,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:43:59,832 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:43:59,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:43:59,833 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:43:59,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:43:59,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:43:59,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:43:59,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:43:59,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:43:59,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:43:59,836 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:43:59,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:43:59,836 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:43:59,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:43:59,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:43:59,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:43:59,837 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:43:59,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:43:59,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:43:59,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:43:59,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:43:59,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:43:59,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:43:59,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:43:59,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:43:59,839 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:43:59,839 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:44:00,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:44:00,353 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:44:00,358 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:44:00,359 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:44:00,360 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:44:00,361 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-09-25 00:44:00,443 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5848e4448/f56a0c57df384eae8de3f5264127a67d/FLAGbc52dc6bc [2020-09-25 00:44:01,106 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:44:01,107 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-09-25 00:44:01,130 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5848e4448/f56a0c57df384eae8de3f5264127a67d/FLAGbc52dc6bc [2020-09-25 00:44:01,326 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5848e4448/f56a0c57df384eae8de3f5264127a67d [2020-09-25 00:44:01,339 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:44:01,344 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:44:01,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:44:01,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:44:01,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:44:01,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:44:01" (1/1) ... [2020-09-25 00:44:01,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae2094d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:01, skipping insertion in model container [2020-09-25 00:44:01,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:44:01" (1/1) ... [2020-09-25 00:44:01,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:44:01,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:44:01,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:44:01,979 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:44:02,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:44:02,164 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:44:02,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:02 WrapperNode [2020-09-25 00:44:02,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:44:02,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:44:02,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:44:02,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:44:02,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:02" (1/1) ... [2020-09-25 00:44:02,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:02" (1/1) ... [2020-09-25 00:44:02,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:02" (1/1) ... [2020-09-25 00:44:02,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:02" (1/1) ... [2020-09-25 00:44:02,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:02" (1/1) ... [2020-09-25 00:44:02,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:02" (1/1) ... [2020-09-25 00:44:02,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:02" (1/1) ... [2020-09-25 00:44:02,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:44:02,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:44:02,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:44:02,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:44:02,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:44:02,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:44:02,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:44:02,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:44:02,360 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:44:02,360 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:44:02,360 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:44:02,360 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:44:02,360 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:44:02,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:44:02,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:44:02,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:44:02,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:44:02,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:44:02,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:44:02,362 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:44:02,362 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:44:02,362 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:44:02,362 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:44:02,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:44:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:44:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:44:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:44:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:44:02,364 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:44:02,364 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:44:02,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:44:02,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 00:44:02,364 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:44:02,364 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:44:02,365 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:44:02,365 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 00:44:02,365 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:44:02,365 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:44:02,365 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:44:02,366 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:44:02,366 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:44:02,366 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:44:02,366 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:44:02,366 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 00:44:02,367 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 00:44:02,367 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 00:44:02,367 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:44:02,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:44:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:44:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:44:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:44:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:44:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:44:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:44:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:44:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:44:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:44:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:44:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:44:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:44:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:44:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:44:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:44:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:44:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:44:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:44:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:44:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:44:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:44:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:44:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:44:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:44:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:44:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:44:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:44:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:44:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:44:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:44:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:44:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:44:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:44:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:44:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:44:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:44:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:44:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:44:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:44:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:44:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:44:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:44:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 00:44:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:44:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:44:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 00:44:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 00:44:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:44:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:44:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:44:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:44:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 00:44:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 00:44:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:44:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:44:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:44:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:44:03,719 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:44:03,719 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:44:03,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:44:03 BoogieIcfgContainer [2020-09-25 00:44:03,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:44:03,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:44:03,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:44:03,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:44:03,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:44:01" (1/3) ... [2020-09-25 00:44:03,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5424f1a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:44:03, skipping insertion in model container [2020-09-25 00:44:03,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:02" (2/3) ... [2020-09-25 00:44:03,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5424f1a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:44:03, skipping insertion in model container [2020-09-25 00:44:03,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:44:03" (3/3) ... [2020-09-25 00:44:03,737 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2020-09-25 00:44:03,751 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:44:03,763 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:44:03,786 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:44:03,822 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:44:03,822 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:44:03,822 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:44:03,822 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:44:03,822 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:44:03,822 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:44:03,823 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:44:03,823 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:44:03,854 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states. [2020-09-25 00:44:03,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 00:44:03,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:03,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:44:03,877 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:03,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:03,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1296502413, now seen corresponding path program 1 times [2020-09-25 00:44:03,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:03,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1225816769] [2020-09-25 00:44:03,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:04,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:04,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:06,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:09,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:09,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 00:44:09,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:44:09,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 00:44:09,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:09,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:09,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 00:44:09,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:09,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:44:09,710 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:09,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:09,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:09,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:09,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:09,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:09,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 00:44:09,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:09,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:09,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:09,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:09,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:09,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:09,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:09,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:09,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:09,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:09,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:09,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:09,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:09,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:09,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:09,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:09,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:09,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:09,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:09,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:09,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:09,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:09,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:09,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:09,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:09,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:09,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:09,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:09,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:09,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:09,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:09,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:09,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:09,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:44:09,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:09,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:09,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:09,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:09,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:09,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:09,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:09,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:09,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:09,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:09,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:09,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:09,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:09,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:09,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:09,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:09,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 00:44:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:09,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:09,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:09,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:09,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:09,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:09,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:09,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:09,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:09,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:09,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:09,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:44:09,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:09,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:09,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:09,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:09,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:09,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:09,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:09,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:09,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:09,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:09,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:09,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 00:44:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:09,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:09,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:09,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:09,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:09,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:09,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:09,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:09,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:09,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:09,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:10,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:44:10,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1225816769] [2020-09-25 00:44:10,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:10,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:44:10,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160135936] [2020-09-25 00:44:10,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:44:10,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:10,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:44:10,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:44:10,039 INFO L87 Difference]: Start difference. First operand 353 states. Second operand 3 states. [2020-09-25 00:44:11,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:11,661 INFO L93 Difference]: Finished difference Result 576 states and 686 transitions. [2020-09-25 00:44:11,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:44:11,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 00:44:11,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:11,697 INFO L225 Difference]: With dead ends: 576 [2020-09-25 00:44:11,697 INFO L226 Difference]: Without dead ends: 348 [2020-09-25 00:44:11,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:44:11,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-09-25 00:44:11,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 302. [2020-09-25 00:44:11,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-09-25 00:44:11,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 332 transitions. [2020-09-25 00:44:11,819 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 332 transitions. Word has length 153 [2020-09-25 00:44:11,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:11,821 INFO L479 AbstractCegarLoop]: Abstraction has 302 states and 332 transitions. [2020-09-25 00:44:11,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:44:11,821 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 332 transitions. [2020-09-25 00:44:11,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 00:44:11,826 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:11,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:44:11,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:44:11,827 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:11,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:11,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1707767493, now seen corresponding path program 1 times [2020-09-25 00:44:11,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:11,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648834724] [2020-09-25 00:44:11,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:11,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:12,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:13,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:16,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:16,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 00:44:16,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:44:16,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 00:44:16,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:16,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:16,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 00:44:16,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:44:16,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:17,269 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:17,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:17,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:17,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:17,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:17,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:17,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 00:44:17,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:17,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:17,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:17,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:17,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:17,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:17,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:17,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:17,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:17,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:17,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:17,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:17,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:17,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:17,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:17,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:17,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:17,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:17,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:17,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:17,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:17,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:17,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:17,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:17,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:17,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:17,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:17,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:17,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:17,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:44:17,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:17,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:17,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:17,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:17,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:17,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:17,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:17,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:17,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:17,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:17,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:17,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:17,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:17,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:17,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:17,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:17,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 00:44:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:17,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:17,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:17,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:17,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:17,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:17,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:17,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:17,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:17,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:17,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:17,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 00:44:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:17,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:17,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:17,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:17,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:17,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:17,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:17,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:17,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:17,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:17,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:17,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 00:44:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:17,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:17,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:17,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:17,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:17,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:17,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:17,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:17,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:17,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:17,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:17,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:44:17,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648834724] [2020-09-25 00:44:17,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:17,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:44:17,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204700402] [2020-09-25 00:44:17,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:44:17,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:17,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:44:17,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:44:17,540 INFO L87 Difference]: Start difference. First operand 302 states and 332 transitions. Second operand 4 states. [2020-09-25 00:44:18,167 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:44:19,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:19,619 INFO L93 Difference]: Finished difference Result 483 states and 549 transitions. [2020-09-25 00:44:19,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:44:19,621 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 00:44:19,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:19,626 INFO L225 Difference]: With dead ends: 483 [2020-09-25 00:44:19,626 INFO L226 Difference]: Without dead ends: 331 [2020-09-25 00:44:19,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:44:19,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-09-25 00:44:19,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 292. [2020-09-25 00:44:19,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-09-25 00:44:19,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 319 transitions. [2020-09-25 00:44:19,676 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 319 transitions. Word has length 154 [2020-09-25 00:44:19,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:19,677 INFO L479 AbstractCegarLoop]: Abstraction has 292 states and 319 transitions. [2020-09-25 00:44:19,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:44:19,677 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 319 transitions. [2020-09-25 00:44:19,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 00:44:19,680 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:19,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:44:19,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:44:19,681 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:19,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:19,682 INFO L82 PathProgramCache]: Analyzing trace with hash 359507624, now seen corresponding path program 1 times [2020-09-25 00:44:19,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:19,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241159147] [2020-09-25 00:44:19,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:19,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:19,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:22,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:22,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 00:44:22,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:44:22,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3130 [2020-09-25 00:44:22,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:22,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:22,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 00:44:22,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:44:22,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:23,129 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:23,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:23,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:23,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:23,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:23,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:23,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 00:44:23,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:23,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:23,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:23,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:23,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:23,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:23,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:23,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:23,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:23,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:23,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:23,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:23,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:23,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:23,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:23,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:23,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:23,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:23,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:23,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:23,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:23,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:23,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:23,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:23,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:23,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:23,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:23,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:23,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:23,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:23,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:23,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:23,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:23,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:23,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:23,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:23,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:23,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:23,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:23,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:23,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:23,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:23,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:23,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:23,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:23,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:23,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:23,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:23,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:23,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:23,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 00:44:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:23,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:23,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:23,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:44:23,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:23,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:44:23,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:23,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:23,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:23,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 00:44:23,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:23,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 00:44:23,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:23,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:23,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:23,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:23,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:23,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:23,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:23,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:23,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:23,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:23,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:23,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 00:44:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:23,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:23,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:23,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:23,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:23,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 00:44:23,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:23,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:23,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:23,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:23,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:23,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 00:44:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:23,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:23,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:23,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:23,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:23,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:23,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:23,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:23,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:23,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:23,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:23,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:44:23,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241159147] [2020-09-25 00:44:23,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:23,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:44:23,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602417792] [2020-09-25 00:44:23,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:44:23,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:23,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:44:23,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:44:23,499 INFO L87 Difference]: Start difference. First operand 292 states and 319 transitions. Second operand 5 states. [2020-09-25 00:44:23,985 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:44:26,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:26,516 INFO L93 Difference]: Finished difference Result 730 states and 850 transitions. [2020-09-25 00:44:26,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:44:26,519 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 00:44:26,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:26,526 INFO L225 Difference]: With dead ends: 730 [2020-09-25 00:44:26,526 INFO L226 Difference]: Without dead ends: 548 [2020-09-25 00:44:26,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:44:26,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-09-25 00:44:26,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 464. [2020-09-25 00:44:26,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-09-25 00:44:26,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 519 transitions. [2020-09-25 00:44:26,603 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 519 transitions. Word has length 167 [2020-09-25 00:44:26,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:26,604 INFO L479 AbstractCegarLoop]: Abstraction has 464 states and 519 transitions. [2020-09-25 00:44:26,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:44:26,604 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 519 transitions. [2020-09-25 00:44:26,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 00:44:26,608 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:26,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:44:26,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:44:26,609 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:26,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:26,610 INFO L82 PathProgramCache]: Analyzing trace with hash -585794347, now seen corresponding path program 1 times [2020-09-25 00:44:26,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:26,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [314712791] [2020-09-25 00:44:26,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:26,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:28,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:28,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 00:44:28,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:28,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1823 [2020-09-25 00:44:28,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:28,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:44:28,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 00:44:28,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 00:44:28,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:28,930 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:28,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:29,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:29,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:29,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:29,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:29,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-09-25 00:44:29,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:29,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:29,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:29,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 00:44:29,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:29,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:29,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:29,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:29,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:29,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:29,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:29,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:29,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:29,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:29,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:44:29,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:29,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:29,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:29,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:29,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:29,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:29,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:29,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:29,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:29,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:29,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:44:29,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:29,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:29,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:29,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:29,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:29,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:29,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:44:29,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:29,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:29,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:29,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:29,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:29,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:29,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:29,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:29,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:29,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:29,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:29,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:29,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:29,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:29,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:44:29,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:29,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 00:44:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:29,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:29,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:29,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:44:29,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:29,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:29,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:29,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:29,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:29,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:44:29,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:29,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 00:44:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:29,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:29,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:29,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:29,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:29,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:29,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:29,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:29,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:29,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:29,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:29,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 00:44:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:29,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:29,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:29,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:29,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:29,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:44:29,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:29,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:44:29,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:29,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:29,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:29,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 00:44:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:29,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:29,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:29,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:29,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:29,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:29,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:29,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:29,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:29,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:29,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:29,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:44:29,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [314712791] [2020-09-25 00:44:29,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:29,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:44:29,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661677715] [2020-09-25 00:44:29,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:44:29,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:29,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:44:29,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:44:29,634 INFO L87 Difference]: Start difference. First operand 464 states and 519 transitions. Second operand 9 states. [2020-09-25 00:44:30,243 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:44:32,549 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:44:33,266 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 00:44:33,700 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:44:34,100 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:44:34,431 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:44:34,761 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:44:35,080 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:44:36,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:36,298 INFO L93 Difference]: Finished difference Result 1266 states and 1523 transitions. [2020-09-25 00:44:36,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 00:44:36,299 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-25 00:44:36,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:36,305 INFO L225 Difference]: With dead ends: 1266 [2020-09-25 00:44:36,306 INFO L226 Difference]: Without dead ends: 912 [2020-09-25 00:44:36,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 00:44:36,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2020-09-25 00:44:36,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 809. [2020-09-25 00:44:36,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-09-25 00:44:36,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 927 transitions. [2020-09-25 00:44:36,433 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 927 transitions. Word has length 172 [2020-09-25 00:44:36,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:36,434 INFO L479 AbstractCegarLoop]: Abstraction has 809 states and 927 transitions. [2020-09-25 00:44:36,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:44:36,434 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 927 transitions. [2020-09-25 00:44:36,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 00:44:36,440 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:36,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:44:36,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:44:36,440 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:36,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:36,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1663706585, now seen corresponding path program 1 times [2020-09-25 00:44:36,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:36,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141049675] [2020-09-25 00:44:36,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 00:44:36,505 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 00:44:36,505 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 00:44:36,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:44:36,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:44:36 BoogieIcfgContainer [2020-09-25 00:44:36,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:44:36,540 INFO L168 Benchmark]: Toolchain (without parser) took 35199.20 ms. Allocated memory was 139.5 MB in the beginning and 632.3 MB in the end (delta: 492.8 MB). Free memory was 101.9 MB in the beginning and 400.6 MB in the end (delta: -298.7 MB). Peak memory consumption was 194.2 MB. Max. memory is 7.1 GB. [2020-09-25 00:44:36,540 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 00:44:36,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 820.53 ms. Allocated memory was 139.5 MB in the beginning and 200.8 MB in the end (delta: 61.3 MB). Free memory was 101.3 MB in the beginning and 166.4 MB in the end (delta: -65.1 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-09-25 00:44:36,542 INFO L168 Benchmark]: Boogie Preprocessor took 98.65 ms. Allocated memory is still 200.8 MB. Free memory was 166.4 MB in the beginning and 162.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-25 00:44:36,543 INFO L168 Benchmark]: RCFGBuilder took 1463.06 ms. Allocated memory was 200.8 MB in the beginning and 233.8 MB in the end (delta: 33.0 MB). Free memory was 162.4 MB in the beginning and 166.8 MB in the end (delta: -4.4 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2020-09-25 00:44:36,544 INFO L168 Benchmark]: TraceAbstraction took 32808.93 ms. Allocated memory was 233.8 MB in the beginning and 632.3 MB in the end (delta: 398.5 MB). Free memory was 166.8 MB in the beginning and 400.6 MB in the end (delta: -233.8 MB). Peak memory consumption was 164.7 MB. Max. memory is 7.1 GB. [2020-09-25 00:44:36,548 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 820.53 ms. Allocated memory was 139.5 MB in the beginning and 200.8 MB in the end (delta: 61.3 MB). Free memory was 101.3 MB in the beginning and 166.4 MB in the end (delta: -65.1 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.65 ms. Allocated memory is still 200.8 MB. Free memory was 166.4 MB in the beginning and 162.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1463.06 ms. Allocated memory was 200.8 MB in the beginning and 233.8 MB in the end (delta: 33.0 MB). Free memory was 162.4 MB in the beginning and 166.8 MB in the end (delta: -4.4 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32808.93 ms. Allocated memory was 233.8 MB in the beginning and 632.3 MB in the end (delta: 398.5 MB). Free memory was 166.8 MB in the beginning and 400.6 MB in the end (delta: -233.8 MB). Peak memory consumption was 164.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1013]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int waterLevel = 1; [L588] int methaneLevelCritical = 0; [L694] int pumpRunning = 0; [L695] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 [L950] COND TRUE 1 [L952] COND TRUE splverifierCounter < 4 [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) [L962] CALL waterRise() [L605] COND TRUE waterLevel < 2 [L606] waterLevel = waterLevel + 1 [L962] RET waterRise() [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L986] tmp___1 = __VERIFIER_nondet_int() [L988] COND TRUE \read(tmp___1) [L990] CALL stopSystem() [L920] COND FALSE !(\read(pumpRunning)) [L927] systemActive = 0 [L990] RET stopSystem() [L997] CALL timeShift() [L701] COND FALSE !(\read(pumpRunning)) [L708] COND FALSE !(\read(systemActive)) [L716] CALL __utac_acc__Specification3_spec__1() [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L556] CALL, EXPR isMethaneLevelCritical() [L626] int retValue_acc ; [L629] retValue_acc = methaneLevelCritical [L630] return (retValue_acc); [L556] RET, EXPR isMethaneLevelCritical() [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L562] CALL, EXPR getWaterLevel() [L658] int retValue_acc ; [L661] retValue_acc = waterLevel [L662] return (retValue_acc); [L562] RET, EXPR getWaterLevel() [L562] tmp___0 = getWaterLevel() [L564] COND TRUE tmp___0 == 2 [L566] CALL, EXPR isPumpRunning() [L834] int retValue_acc ; [L837] retValue_acc = pumpRunning [L838] return (retValue_acc); [L566] RET, EXPR isPumpRunning() [L566] tmp___1 = isPumpRunning() [L568] COND FALSE !(\read(tmp___1)) [L572] CALL __automaton_fail() [L1013] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 665 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1161 SDtfs, 1496 SDslu, 908 SDs, 0 SdLazy, 2595 SolverSat, 496 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=809occurred 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, 272 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.8s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 247340 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...