/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:33:21,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:33:21,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:33:21,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:33:21,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:33:21,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:33:21,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:33:21,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:33:21,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:33:21,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:33:21,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:33:21,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:33:21,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:33:21,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:33:21,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:33:21,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:33:21,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:33:21,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:33:21,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:33:21,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:33:21,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:33:21,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:33:21,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:33:21,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:33:21,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:33:21,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:33:21,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:33:21,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:33:21,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:33:21,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:33:21,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:33:21,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:33:21,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:33:21,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:33:21,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:33:21,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:33:21,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:33:21,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:33:21,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:33:21,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:33:21,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:33:21,600 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 07:33:21,628 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:33:21,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:33:21,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:33:21,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:33:21,631 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:33:21,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:33:21,631 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:33:21,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:33:21,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:33:21,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:33:21,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:33:21,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:33:21,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:33:21,633 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:33:21,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:33:21,633 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:33:21,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:33:21,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:33:21,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:33:21,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:33:21,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:33:21,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:33:21,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:33:21,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:33:21,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:33:21,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:33:21,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:33:21,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:33:21,636 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:33:21,636 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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:33:22,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:33:22,149 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:33:22,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:33:22,156 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:33:22,157 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:33:22,158 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-09-25 07:33:22,249 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/205df54fd/e709219f2f2c495db6d30022ffb978e3/FLAGd5ec3d388 [2020-09-25 07:33:22,893 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:33:22,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-09-25 07:33:22,921 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/205df54fd/e709219f2f2c495db6d30022ffb978e3/FLAGd5ec3d388 [2020-09-25 07:33:23,137 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/205df54fd/e709219f2f2c495db6d30022ffb978e3 [2020-09-25 07:33:23,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:33:23,160 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:33:23,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:33:23,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:33:23,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:33:23,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:33:23" (1/1) ... [2020-09-25 07:33:23,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:23, skipping insertion in model container [2020-09-25 07:33:23,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:33:23" (1/1) ... [2020-09-25 07:33:23,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:33:23,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:33:23,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:33:23,933 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:33:24,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:33:24,106 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:33:24,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:24 WrapperNode [2020-09-25 07:33:24,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:33:24,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:33:24,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:33:24,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:33:24,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:24" (1/1) ... [2020-09-25 07:33:24,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:24" (1/1) ... [2020-09-25 07:33:24,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:24" (1/1) ... [2020-09-25 07:33:24,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:24" (1/1) ... [2020-09-25 07:33:24,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:24" (1/1) ... [2020-09-25 07:33:24,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:24" (1/1) ... [2020-09-25 07:33:24,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:24" (1/1) ... [2020-09-25 07:33:24,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:33:24,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:33:24,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:33:24,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:33:24,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:24" (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 07:33:24,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:33:24,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:33:24,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:33:24,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:33:24,331 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:33:24,333 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:33:24,333 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:33:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:33:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 07:33:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:33:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:33:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:33:24,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:33:24,335 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:33:24,335 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:33:24,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:33:24,336 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:33:24,336 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:33:24,336 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:33:24,337 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:33:24,337 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 07:33:24,337 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:33:24,338 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:33:24,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:33:24,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:33:24,339 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:33:24,339 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:33:24,339 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:33:24,339 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 07:33:24,339 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:33:24,340 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:33:24,340 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:33:24,340 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:33:24,340 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:33:24,340 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:33:24,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:33:24,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:33:24,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:33:24,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:33:24,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:33:24,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:33:24,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:33:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:33:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:33:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:33:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:33:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:33:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:33:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:33:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:33:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:33:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:33:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 07:33:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:33:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:33:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:33:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:33:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:33:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:33:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:33:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:33:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:33:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:33:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:33:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 07:33:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:33:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:33:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:33:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:33:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:33:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 07:33:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:33:24,349 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:33:24,349 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:33:24,349 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:33:24,349 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:33:24,349 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:33:24,349 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:33:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:33:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:33:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:33:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:33:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:33:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:33:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:33:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:33:24,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:33:24,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:33:24,352 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:33:24,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:33:24,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:33:24,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:33:24,353 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:33:24,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:33:24,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:33:24,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:33:25,494 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:33:25,495 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:33:25,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:33:25 BoogieIcfgContainer [2020-09-25 07:33:25,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:33:25,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:33:25,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:33:25,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:33:25,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:33:23" (1/3) ... [2020-09-25 07:33:25,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a15058c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:33:25, skipping insertion in model container [2020-09-25 07:33:25,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:24" (2/3) ... [2020-09-25 07:33:25,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a15058c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:33:25, skipping insertion in model container [2020-09-25 07:33:25,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:33:25" (3/3) ... [2020-09-25 07:33:25,512 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2020-09-25 07:33:25,524 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:33:25,536 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:33:25,558 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:33:25,591 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:33:25,591 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:33:25,591 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:33:25,591 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:33:25,591 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:33:25,591 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:33:25,591 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:33:25,592 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:33:25,620 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states. [2020-09-25 07:33:25,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 07:33:25,640 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:33:25,642 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 07:33:25,643 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:33:25,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:33:25,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1855175087, now seen corresponding path program 1 times [2020-09-25 07:33:25,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:33:25,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974926478] [2020-09-25 07:33:25,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:33:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:26,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:26,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:28,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:31,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:31,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 07:33:31,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:33:31,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 07:33:31,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:31,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:31,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:31,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:33:31,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:31,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 30 [2020-09-25 07:33:31,521 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:33:31,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:33:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:31,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:31,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:31,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:33:31,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:31,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 07:33:31,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:31,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:31,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:31,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:31,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:31,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:31,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:33:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:31,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:31,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:31,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:31,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:31,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:31,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:31,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:31,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:31,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:31,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:31,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:31,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:33:31,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:31,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:31,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:31,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:31,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:31,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:31,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:31,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:31,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:31,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:31,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:31,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:31,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:33:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:31,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:31,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:31,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:31,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:31,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:33:31,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:31,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:31,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:31,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:31,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:31,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:31,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:33:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:31,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:31,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:31,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:31,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:31,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:31,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:31,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:31,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:31,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:31,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:31,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:31,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:33:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:31,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:31,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:31,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:31,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:31,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:31,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:31,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:31,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:31,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:31,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:31,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:31,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:33:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:31,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:31,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:31,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:31,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:31,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:31,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:31,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:31,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:31,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:31,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:31,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:31,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 07:33:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:31,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:31,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:31,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:31,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:31,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:33:31,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:31,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:31,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:31,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:31,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:31,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:31,878 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 07:33:31,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [974926478] [2020-09-25 07:33:31,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:33:31,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:33:31,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231854202] [2020-09-25 07:33:31,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:33:31,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:33:31,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:33:31,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:33:31,916 INFO L87 Difference]: Start difference. First operand 331 states. Second operand 3 states. [2020-09-25 07:33:33,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:33:33,510 INFO L93 Difference]: Finished difference Result 532 states and 635 transitions. [2020-09-25 07:33:33,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:33:33,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 07:33:33,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:33:33,533 INFO L225 Difference]: With dead ends: 532 [2020-09-25 07:33:33,533 INFO L226 Difference]: Without dead ends: 326 [2020-09-25 07:33:33,540 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 07:33:33,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-09-25 07:33:33,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 280. [2020-09-25 07:33:33,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-25 07:33:33,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 307 transitions. [2020-09-25 07:33:33,646 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 307 transitions. Word has length 153 [2020-09-25 07:33:33,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:33:33,647 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 307 transitions. [2020-09-25 07:33:33,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:33:33,648 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 307 transitions. [2020-09-25 07:33:33,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 07:33:33,653 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:33:33,653 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 07:33:33,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:33:33,654 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:33:33,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:33:33,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1744708548, now seen corresponding path program 1 times [2020-09-25 07:33:33,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:33:33,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700584946] [2020-09-25 07:33:33,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:33:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:33,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:33,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:35,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:38,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:38,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 07:33:38,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:33:38,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-09-25 07:33:38,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:38,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:38,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:38,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:33:38,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:33:38,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:39,138 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:33:39,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:33:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:39,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:39,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:39,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:33:39,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:39,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 07:33:39,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:39,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:39,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:39,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:39,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:39,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:39,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:33:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:39,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:39,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:39,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:39,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:39,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:39,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:39,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:39,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:39,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:39,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:39,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:39,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:33:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:39,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:39,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:39,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:39,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:39,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:39,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:39,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:39,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:39,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:39,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:39,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:39,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:33:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:39,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:39,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:39,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:39,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:39,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:33:39,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:39,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:39,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:39,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:39,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:39,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:39,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:33:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:39,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:39,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:39,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:39,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:39,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:39,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:39,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:39,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:39,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:39,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:39,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:39,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 07:33:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:39,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:39,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:39,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:39,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:39,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:39,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:39,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:39,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:39,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:39,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:39,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:39,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 07:33:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:39,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:39,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:39,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:39,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:39,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:33:39,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:39,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:39,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:39,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:39,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:39,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:39,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 07:33:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:39,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:39,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:39,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:39,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:39,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:39,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:39,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:39,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:39,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:39,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:39,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:39,366 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 07:33:39,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1700584946] [2020-09-25 07:33:39,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:33:39,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:33:39,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780637927] [2020-09-25 07:33:39,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:33:39,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:33:39,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:33:39,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:33:39,372 INFO L87 Difference]: Start difference. First operand 280 states and 307 transitions. Second operand 4 states. [2020-09-25 07:33:40,079 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:33:41,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:33:41,400 INFO L93 Difference]: Finished difference Result 439 states and 498 transitions. [2020-09-25 07:33:41,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:33:41,401 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 07:33:41,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:33:41,406 INFO L225 Difference]: With dead ends: 439 [2020-09-25 07:33:41,406 INFO L226 Difference]: Without dead ends: 309 [2020-09-25 07:33:41,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:33:41,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-09-25 07:33:41,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 270. [2020-09-25 07:33:41,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-09-25 07:33:41,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 294 transitions. [2020-09-25 07:33:41,459 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 294 transitions. Word has length 154 [2020-09-25 07:33:41,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:33:41,460 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 294 transitions. [2020-09-25 07:33:41,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:33:41,460 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 294 transitions. [2020-09-25 07:33:41,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 07:33:41,464 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:33:41,465 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 07:33:41,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:33:41,465 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:33:41,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:33:41,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1330649895, now seen corresponding path program 1 times [2020-09-25 07:33:41,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:33:41,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [273584514] [2020-09-25 07:33:41,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:33:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:41,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:41,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:44,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:44,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 07:33:44,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:33:44,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2889 [2020-09-25 07:33:44,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:44,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:33:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:33:44,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:44,697 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:33:44,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:33:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:44,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:44,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:44,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:33:44,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:44,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 07:33:44,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:44,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:44,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:44,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:33:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:44,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:44,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:44,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:44,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:44,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:44,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:44,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:44,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:44,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:44,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:44,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:44,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:33:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:44,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:44,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:44,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:44,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:44,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:44,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:44,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:44,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:44,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:44,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:44,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:44,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:33:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:44,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:44,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:44,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:44,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:44,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:33:44,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:44,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:44,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:44,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:44,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:44,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:44,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:33:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:44,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:44,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:44,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:44,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:44,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:44,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:44,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:44,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:44,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:44,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:44,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:44,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:33:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:44,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:44,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:44,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:33:44,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:44,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:33:44,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:44,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:44,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:44,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:44,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:33:44,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:44,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:33:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:44,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:44,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:44,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:44,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:44,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:44,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:44,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:44,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:44,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:44,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:44,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:44,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 07:33:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:44,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:44,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:44,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:44,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:44,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:44,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:44,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:44,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:44,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:44,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:44,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:44,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 07:33:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:44,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:44,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:44,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:44,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:44,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:44,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:44,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:44,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:44,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:44,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:44,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:45,040 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 07:33:45,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [273584514] [2020-09-25 07:33:45,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:33:45,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:33:45,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237658502] [2020-09-25 07:33:45,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:33:45,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:33:45,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:33:45,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:33:45,048 INFO L87 Difference]: Start difference. First operand 270 states and 294 transitions. Second operand 5 states. [2020-09-25 07:33:45,601 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:33:47,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:33:47,915 INFO L93 Difference]: Finished difference Result 664 states and 773 transitions. [2020-09-25 07:33:47,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:33:47,916 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 07:33:47,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:33:47,921 INFO L225 Difference]: With dead ends: 664 [2020-09-25 07:33:47,921 INFO L226 Difference]: Without dead ends: 504 [2020-09-25 07:33:47,923 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 07:33:47,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-09-25 07:33:48,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 420. [2020-09-25 07:33:48,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-09-25 07:33:48,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 469 transitions. [2020-09-25 07:33:48,003 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 469 transitions. Word has length 167 [2020-09-25 07:33:48,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:33:48,004 INFO L479 AbstractCegarLoop]: Abstraction has 420 states and 469 transitions. [2020-09-25 07:33:48,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:33:48,004 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 469 transitions. [2020-09-25 07:33:48,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 07:33:48,008 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:33:48,009 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 07:33:48,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:33:48,009 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:33:48,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:33:48,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1800368934, now seen corresponding path program 1 times [2020-09-25 07:33:48,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:33:48,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493894103] [2020-09-25 07:33:48,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:33:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:48,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:49,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:49,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 07:33:49,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:49,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1695 [2020-09-25 07:33:49,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:49,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:49,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 07:33:49,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 07:33:49,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 07:33:49,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:50,232 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:33:50,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:33:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:50,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:50,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:50,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:33:50,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:50,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-25 07:33:50,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:50,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:50,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:50,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:50,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 07:33:50,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:50,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:33:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:50,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:50,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:50,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:50,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:50,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:50,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:50,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:50,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:50,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:50,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:33:50,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:50,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:33:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:50,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:50,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:50,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:50,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:50,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:50,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:50,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:50,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:50,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:50,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:33:50,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:50,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:33:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:50,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:50,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:50,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:50,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:50,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:33:50,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:50,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:50,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:50,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:50,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:33:50,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:50,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:33:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:50,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:50,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:50,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:50,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:50,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:50,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:50,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:50,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:50,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:50,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:33:50,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:50,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 07:33:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:50,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:50,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:50,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:33:50,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:50,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:50,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:50,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:50,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:50,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:50,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:33:50,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:50,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 07:33:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:50,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:50,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:50,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:50,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:50,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:50,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:50,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:50,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:50,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:50,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:33:50,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:50,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 07:33:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:50,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:50,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:50,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:50,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:50,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:33:50,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:50,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:50,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:33:50,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:50,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:33:50,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:50,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 07:33:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:50,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:50,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:50,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:50,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:50,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:50,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:50,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:50,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:50,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:50,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:50,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:50,696 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 07:33:50,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493894103] [2020-09-25 07:33:50,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:33:50,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:33:50,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248826700] [2020-09-25 07:33:50,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:33:50,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:33:50,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:33:50,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:33:50,699 INFO L87 Difference]: Start difference. First operand 420 states and 469 transitions. Second operand 10 states. [2020-09-25 07:33:51,253 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:33:53,368 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:33:53,679 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:33:54,061 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:33:54,439 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:33:54,799 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:33:55,113 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:33:55,419 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:33:55,891 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:33:57,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:33:57,114 INFO L93 Difference]: Finished difference Result 1146 states and 1418 transitions. [2020-09-25 07:33:57,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:33:57,115 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-25 07:33:57,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:33:57,122 INFO L225 Difference]: With dead ends: 1146 [2020-09-25 07:33:57,122 INFO L226 Difference]: Without dead ends: 836 [2020-09-25 07:33:57,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 07:33:57,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-09-25 07:33:57,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 701. [2020-09-25 07:33:57,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 701 states. [2020-09-25 07:33:57,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 808 transitions. [2020-09-25 07:33:57,258 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 808 transitions. Word has length 172 [2020-09-25 07:33:57,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:33:57,258 INFO L479 AbstractCegarLoop]: Abstraction has 701 states and 808 transitions. [2020-09-25 07:33:57,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:33:57,258 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 808 transitions. [2020-09-25 07:33:57,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 07:33:57,263 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:33:57,263 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 07:33:57,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:33:57,264 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:33:57,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:33:57,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1544124696, now seen corresponding path program 1 times [2020-09-25 07:33:57,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:33:57,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803052030] [2020-09-25 07:33:57,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:33:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 07:33:57,330 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 07:33:57,330 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 07:33:57,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:33:57,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:33:57 BoogieIcfgContainer [2020-09-25 07:33:57,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:33:57,365 INFO L168 Benchmark]: Toolchain (without parser) took 34210.31 ms. Allocated memory was 145.8 MB in the beginning and 648.5 MB in the end (delta: 502.8 MB). Free memory was 101.3 MB in the beginning and 569.1 MB in the end (delta: -467.8 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB. [2020-09-25 07:33:57,366 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 07:33:57,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 947.08 ms. Allocated memory was 145.8 MB in the beginning and 201.3 MB in the end (delta: 55.6 MB). Free memory was 100.7 MB in the beginning and 166.8 MB in the end (delta: -66.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-09-25 07:33:57,368 INFO L168 Benchmark]: Boogie Preprocessor took 117.59 ms. Allocated memory is still 201.3 MB. Free memory was 166.8 MB in the beginning and 162.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 07:33:57,369 INFO L168 Benchmark]: RCFGBuilder took 1276.50 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 162.6 MB in the beginning and 169.1 MB in the end (delta: -6.5 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. [2020-09-25 07:33:57,369 INFO L168 Benchmark]: TraceAbstraction took 31858.88 ms. Allocated memory was 233.3 MB in the beginning and 648.5 MB in the end (delta: 415.2 MB). Free memory was 169.1 MB in the beginning and 569.1 MB in the end (delta: -400.0 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. [2020-09-25 07:33:57,373 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 947.08 ms. Allocated memory was 145.8 MB in the beginning and 201.3 MB in the end (delta: 55.6 MB). Free memory was 100.7 MB in the beginning and 166.8 MB in the end (delta: -66.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.59 ms. Allocated memory is still 201.3 MB. Free memory was 166.8 MB in the beginning and 162.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1276.50 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 162.6 MB in the beginning and 169.1 MB in the end (delta: -6.5 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31858.88 ms. Allocated memory was 233.3 MB in the beginning and 648.5 MB in the end (delta: 415.2 MB). Free memory was 169.1 MB in the beginning and 569.1 MB in the end (delta: -400.0 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L129] int waterLevel = 1; [L130] int methaneLevelCritical = 0; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L447] int cleanupTimeShifts = 4; [L782] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L521] int retValue_acc ; [L522] int tmp ; [L526] FCALL select_helpers() [L527] FCALL select_features() [L528] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L528] RET, EXPR valid_product() [L528] tmp = valid_product() [L530] COND TRUE \read(tmp) [L532] FCALL setup() [L533] CALL runTest() [L515] CALL test() [L545] int splverifierCounter ; [L546] int tmp ; [L547] int tmp___0 ; [L548] int tmp___1 ; [L549] int tmp___2 ; [L552] splverifierCounter = 0 [L554] COND TRUE 1 [L556] COND TRUE splverifierCounter < 4 [L562] tmp = __VERIFIER_nondet_int() [L564] COND TRUE \read(tmp) [L566] CALL waterRise() [L147] COND TRUE waterLevel < 2 [L148] waterLevel = waterLevel + 1 [L566] RET waterRise() [L572] tmp___0 = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp___0)) [L582] tmp___2 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___2)) [L590] tmp___1 = __VERIFIER_nondet_int() [L592] COND TRUE \read(tmp___1) [L594] CALL stopSystem() [L427] COND FALSE !(\read(pumpRunning)) [L434] systemActive = 0 [L594] RET stopSystem() [L601] CALL timeShift() [L236] COND FALSE !(\read(pumpRunning)) [L243] COND FALSE !(\read(systemActive)) [L251] CALL __utac_acc__Specification3_spec__1() [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L97] CALL, EXPR isMethaneLevelCritical() [L168] int retValue_acc ; [L171] retValue_acc = methaneLevelCritical [L172] return (retValue_acc); [L97] RET, EXPR isMethaneLevelCritical() [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L103] CALL, EXPR getWaterLevel() [L200] int retValue_acc ; [L203] retValue_acc = waterLevel [L204] return (retValue_acc); [L103] RET, EXPR getWaterLevel() [L103] tmp___0 = getWaterLevel() [L105] COND TRUE tmp___0 == 2 [L107] CALL, EXPR isPumpRunning() [L360] int retValue_acc ; [L363] retValue_acc = pumpRunning [L364] return (retValue_acc); [L107] RET, EXPR isPumpRunning() [L107] tmp___1 = isPumpRunning() [L109] COND FALSE !(\read(tmp___1)) [L113] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 643 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 31.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1087 SDtfs, 1764 SDslu, 889 SDs, 0 SdLazy, 2366 SolverSat, 691 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=701occurred 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, 304 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.4s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 256061 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...