/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:19:21,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:19:21,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:19:21,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:19:21,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:19:21,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:19:21,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:19:21,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:19:21,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:19:21,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:19:21,140 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:19:21,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:19:21,142 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:19:21,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:19:21,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:19:21,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:19:21,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:19:21,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:19:21,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:19:21,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:19:21,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:19:21,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:19:21,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:19:21,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:19:21,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:19:21,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:19:21,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:19:21,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:19:21,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:19:21,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:19:21,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:19:21,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:19:21,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:19:21,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:19:21,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:19:21,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:19:21,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:19:21,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:19:21,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:19:21,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:19:21,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:19:21,204 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 14:19:21,247 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:19:21,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:19:21,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:19:21,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:19:21,250 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:19:21,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:19:21,251 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:19:21,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:19:21,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:19:21,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:19:21,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:19:21,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:19:21,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:19:21,253 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:19:21,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:19:21,254 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:19:21,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:19:21,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:19:21,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:19:21,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:19:21,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:19:21,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:19:21,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:19:21,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:19:21,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:19:21,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:19:21,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:19:21,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:19:21,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:19:21,257 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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:19:21,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:19:21,724 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:19:21,729 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:19:21,731 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:19:21,731 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:19:21,732 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-09-25 14:19:21,817 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd3d0cc58/e411df83dcaa4e618d8a9a1854a6d988/FLAG1c776385f [2020-09-25 14:19:22,489 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:19:22,490 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-09-25 14:19:22,513 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd3d0cc58/e411df83dcaa4e618d8a9a1854a6d988/FLAG1c776385f [2020-09-25 14:19:22,700 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd3d0cc58/e411df83dcaa4e618d8a9a1854a6d988 [2020-09-25 14:19:22,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:19:22,717 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:19:22,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:19:22,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:19:22,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:19:22,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:19:22" (1/1) ... [2020-09-25 14:19:22,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db1276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:22, skipping insertion in model container [2020-09-25 14:19:22,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:19:22" (1/1) ... [2020-09-25 14:19:22,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:19:22,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:19:23,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:19:23,202 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:19:23,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:19:23,423 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:19:23,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:23 WrapperNode [2020-09-25 14:19:23,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:19:23,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:19:23,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:19:23,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:19:23,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:23" (1/1) ... [2020-09-25 14:19:23,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:23" (1/1) ... [2020-09-25 14:19:23,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:23" (1/1) ... [2020-09-25 14:19:23,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:23" (1/1) ... [2020-09-25 14:19:23,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:23" (1/1) ... [2020-09-25 14:19:23,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:23" (1/1) ... [2020-09-25 14:19:23,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:23" (1/1) ... [2020-09-25 14:19:23,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:19:23,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:19:23,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:19:23,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:19:23,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:23" (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 14:19:23,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:19:23,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:19:23,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:19:23,649 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:19:23,649 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:19:23,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:19:23,649 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:19:23,649 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:19:23,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:19:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 14:19:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:19:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:19:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:19:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:19:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:19:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:19:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:19:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:19:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:19:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:19:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:19:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:19:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:19:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 14:19:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:19:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:19:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:19:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:19:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:19:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 14:19:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:19:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:19:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:19:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:19:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:19:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:19:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:19:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:19:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 14:19:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:19:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:19:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:19:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:19:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:19:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:19:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:19:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:19:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:19:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:19:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:19:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:19:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:19:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:19:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:19:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:19:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:19:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:19:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:19:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:19:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 14:19:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:19:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:19:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:19:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:19:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:19:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:19:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:19:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:19:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:19:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:19:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:19:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:19:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:19:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:19:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:19:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:19:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:19:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:19:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:19:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:19:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 14:19:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:19:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:19:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:19:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:19:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:19:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 14:19:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 14:19:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:19:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:19:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:19:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:19:24,892 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:19:24,893 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:19:24,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:19:24 BoogieIcfgContainer [2020-09-25 14:19:24,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:19:24,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:19:24,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:19:24,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:19:24,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:19:22" (1/3) ... [2020-09-25 14:19:24,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef819bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:19:24, skipping insertion in model container [2020-09-25 14:19:24,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:23" (2/3) ... [2020-09-25 14:19:24,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef819bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:19:24, skipping insertion in model container [2020-09-25 14:19:24,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:19:24" (3/3) ... [2020-09-25 14:19:24,916 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2020-09-25 14:19:24,930 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:19:24,945 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:19:24,970 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:19:25,008 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:19:25,009 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:19:25,009 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:19:25,009 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:19:25,009 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:19:25,010 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:19:25,010 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:19:25,010 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:19:25,051 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-09-25 14:19:25,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 14:19:25,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:19:25,072 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 14:19:25,072 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:19:25,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:19:25,081 INFO L82 PathProgramCache]: Analyzing trace with hash -377200977, now seen corresponding path program 1 times [2020-09-25 14:19:25,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:19:25,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864498942] [2020-09-25 14:19:25,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:19:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:25,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:25,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:27,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:30,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:30,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 14:19:30,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:19:30,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5084 [2020-09-25 14:19:30,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:30,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:30,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:19:30,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 14:19:30,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 14:19:30,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 14:19:31,130 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:19:31,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:19:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:31,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:31,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:31,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:19:31,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:31,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-09-25 14:19:31,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:31,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:31,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:31,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:31,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 14:19:31,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:31,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:19:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:31,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:31,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:31,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:31,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:31,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:19:31,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:31,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:31,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:31,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:31,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:31,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:19:31,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:19:31,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:31,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:31,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:31,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:31,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:31,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:19:31,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:31,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:31,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:31,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:31,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:31,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:31,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:19:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:31,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:31,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:31,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:31,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:31,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 14:19:31,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:31,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:31,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:31,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:31,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:31,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:31,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:19:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:31,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:31,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:31,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:31,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:31,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:19:31,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:31,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:31,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:31,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:31,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:31,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:19:31,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 14:19:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:31,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:31,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:31,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:31,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:31,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:31,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:31,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:31,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:31,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:31,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:31,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:19:31,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 14:19:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:31,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:31,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:31,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:31,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:31,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:31,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:31,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:31,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:31,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:31,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:31,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:19:31,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 14:19:31,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:31,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:31,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:31,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:31,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:31,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:19:31,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:31,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:31,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:31,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:31,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:31,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:19:31,891 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 14:19:31,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864498942] [2020-09-25 14:19:31,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:19:31,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:19:31,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539085044] [2020-09-25 14:19:31,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:19:31,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:19:31,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:19:31,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:19:31,936 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 4 states. [2020-09-25 14:19:32,803 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:19:35,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:19:35,060 INFO L93 Difference]: Finished difference Result 683 states and 821 transitions. [2020-09-25 14:19:35,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:19:35,062 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-25 14:19:35,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:19:35,085 INFO L225 Difference]: With dead ends: 683 [2020-09-25 14:19:35,085 INFO L226 Difference]: Without dead ends: 479 [2020-09-25 14:19:35,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:19:35,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2020-09-25 14:19:35,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 406. [2020-09-25 14:19:35,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2020-09-25 14:19:35,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 449 transitions. [2020-09-25 14:19:35,250 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 449 transitions. Word has length 153 [2020-09-25 14:19:35,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:19:35,251 INFO L479 AbstractCegarLoop]: Abstraction has 406 states and 449 transitions. [2020-09-25 14:19:35,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:19:35,251 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 449 transitions. [2020-09-25 14:19:35,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 14:19:35,257 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:19:35,257 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] [2020-09-25 14:19:35,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:19:35,258 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:19:35,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:19:35,258 INFO L82 PathProgramCache]: Analyzing trace with hash -245489953, now seen corresponding path program 1 times [2020-09-25 14:19:35,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:19:35,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262284975] [2020-09-25 14:19:35,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:19:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:39,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:40,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:40,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 14:19:40,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:19:40,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 14:19:40,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:40,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:40,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:19:40,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:19:40,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 14:19:40,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:40,661 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:19:40,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:19:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:40,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:41,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:41,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:19:41,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:41,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 14:19:41,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:41,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:41,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:41,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:41,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:19:41,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:41,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:19:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:41,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:41,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:41,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:41,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:41,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:19:41,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:41,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:41,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:41,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:41,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:41,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:41,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:19:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:41,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:41,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:41,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:41,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:41,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:41,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:41,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:41,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:41,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:41,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:41,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:41,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:19:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:41,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:41,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:41,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:41,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:41,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:19:41,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:41,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:41,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:41,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:41,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:41,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:41,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:19:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:41,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:41,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:41,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:41,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:41,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:41,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:41,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:41,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:41,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:41,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:41,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:41,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:19:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:41,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:41,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:41,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:19:41,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:41,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:19:41,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:41,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:19:41,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:19:41,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:19:41,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:41,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:19:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:41,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:41,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:41,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:41,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:41,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:19:41,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:41,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:41,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:41,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:41,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:41,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:19:41,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:19:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:41,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:41,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:41,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:41,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:41,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:19:41,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:41,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:41,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:41,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:41,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:41,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:19:41,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 14:19:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:41,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:41,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:41,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:41,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:41,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:19:41,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:41,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:41,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:41,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:41,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:41,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:41,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 14:19:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:41,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:41,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:41,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:41,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:41,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:41,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:41,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:41,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:41,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:41,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:41,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:41,278 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 14:19:41,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [262284975] [2020-09-25 14:19:41,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:19:41,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:19:41,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110476010] [2020-09-25 14:19:41,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:19:41,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:19:41,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:19:41,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:19:41,283 INFO L87 Difference]: Start difference. First operand 406 states and 449 transitions. Second operand 7 states. [2020-09-25 14:19:41,793 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:19:43,574 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:19:44,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:19:44,866 INFO L93 Difference]: Finished difference Result 1097 states and 1317 transitions. [2020-09-25 14:19:44,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 14:19:44,867 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 162 [2020-09-25 14:19:44,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:19:44,885 INFO L225 Difference]: With dead ends: 1097 [2020-09-25 14:19:44,885 INFO L226 Difference]: Without dead ends: 801 [2020-09-25 14:19:44,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-25 14:19:44,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2020-09-25 14:19:45,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 683. [2020-09-25 14:19:45,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 683 states. [2020-09-25 14:19:45,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 772 transitions. [2020-09-25 14:19:45,028 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 772 transitions. Word has length 162 [2020-09-25 14:19:45,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:19:45,029 INFO L479 AbstractCegarLoop]: Abstraction has 683 states and 772 transitions. [2020-09-25 14:19:45,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:19:45,029 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 772 transitions. [2020-09-25 14:19:45,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 14:19:45,032 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:19:45,033 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 14:19:45,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:19:45,033 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:19:45,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:19:45,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1418606569, now seen corresponding path program 1 times [2020-09-25 14:19:45,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:19:45,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224170060] [2020-09-25 14:19:45,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:19:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:45,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:47,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:47,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 14:19:47,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:47,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2075 [2020-09-25 14:19:47,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:47,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:47,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:19:47,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 14:19:47,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 14:19:47,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:47,567 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:19:47,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:19:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:47,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:47,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:47,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:19:47,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:47,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-09-25 14:19:47,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:47,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:47,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:47,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:47,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:19:47,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:47,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:19:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:47,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:47,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:47,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:47,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:47,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:47,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:47,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:47,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:47,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:47,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:47,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:47,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:19:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:47,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:47,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:47,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:47,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:47,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:47,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:47,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:47,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:47,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:47,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:47,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:47,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:19:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:47,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:47,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:47,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:47,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:47,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:19:47,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:47,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:47,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:47,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:47,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:19:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:48,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:48,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:48,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:48,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:48,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:48,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:48,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:48,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:48,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:48,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:48,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:48,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 14:19:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:48,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:48,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:48,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:19:48,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:48,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:19:48,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:48,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:48,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:48,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:48,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:19:48,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:48,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 14:19:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:48,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:48,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:48,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:48,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:48,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:48,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:48,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:48,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:48,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:48,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:48,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:48,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 14:19:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:48,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:48,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:48,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:48,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:48,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:19:48,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:48,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:48,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:19:48,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:48,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:48,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:48,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 14:19:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:48,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:48,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:48,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:48,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:48,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:48,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:48,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:48,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:48,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:48,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:48,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:48,174 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 14:19:48,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1224170060] [2020-09-25 14:19:48,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:19:48,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 14:19:48,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826029865] [2020-09-25 14:19:48,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:19:48,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:19:48,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:19:48,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:19:48,177 INFO L87 Difference]: Start difference. First operand 683 states and 772 transitions. Second operand 10 states. [2020-09-25 14:19:48,772 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:19:50,359 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:19:50,692 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:19:51,075 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:19:51,403 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:19:51,708 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:19:52,033 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:19:52,334 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:19:52,843 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:19:54,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:19:54,754 INFO L93 Difference]: Finished difference Result 1893 states and 2365 transitions. [2020-09-25 14:19:54,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 14:19:54,754 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-25 14:19:54,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:19:54,766 INFO L225 Difference]: With dead ends: 1893 [2020-09-25 14:19:54,767 INFO L226 Difference]: Without dead ends: 1242 [2020-09-25 14:19:54,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 14:19:54,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2020-09-25 14:19:54,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1141. [2020-09-25 14:19:54,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-09-25 14:19:54,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1305 transitions. [2020-09-25 14:19:54,964 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1305 transitions. Word has length 172 [2020-09-25 14:19:54,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:19:54,965 INFO L479 AbstractCegarLoop]: Abstraction has 1141 states and 1305 transitions. [2020-09-25 14:19:54,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:19:54,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1305 transitions. [2020-09-25 14:19:54,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 14:19:54,971 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:19:54,971 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 14:19:54,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:19:54,972 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:19:54,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:19:54,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1797665662, now seen corresponding path program 1 times [2020-09-25 14:19:54,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:19:54,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2058195929] [2020-09-25 14:19:54,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:19:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 14:19:55,048 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 14:19:55,049 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 14:19:55,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:19:55,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:19:55 BoogieIcfgContainer [2020-09-25 14:19:55,090 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 14:19:55,092 INFO L168 Benchmark]: Toolchain (without parser) took 32378.05 ms. Allocated memory was 140.0 MB in the beginning and 609.2 MB in the end (delta: 469.2 MB). Free memory was 102.3 MB in the beginning and 358.0 MB in the end (delta: -255.7 MB). Peak memory consumption was 213.6 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:55,093 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 14:19:55,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.52 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.6 MB in the beginning and 173.9 MB in the end (delta: -72.3 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:55,096 INFO L168 Benchmark]: Boogie Preprocessor took 101.09 ms. Allocated memory is still 203.9 MB. Free memory was 173.2 MB in the beginning and 169.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:55,102 INFO L168 Benchmark]: RCFGBuilder took 1378.14 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 169.1 MB in the beginning and 178.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:55,103 INFO L168 Benchmark]: TraceAbstraction took 30183.72 ms. Allocated memory was 237.5 MB in the beginning and 609.2 MB in the end (delta: 371.7 MB). Free memory was 178.7 MB in the beginning and 358.0 MB in the end (delta: -179.3 MB). Peak memory consumption was 192.5 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:55,116 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 705.52 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.6 MB in the beginning and 173.9 MB in the end (delta: -72.3 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.09 ms. Allocated memory is still 203.9 MB. Free memory was 173.2 MB in the beginning and 169.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1378.14 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 169.1 MB in the beginning and 178.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30183.72 ms. Allocated memory was 237.5 MB in the beginning and 609.2 MB in the end (delta: 371.7 MB). Free memory was 178.7 MB in the beginning and 358.0 MB in the end (delta: -179.3 MB). Peak memory consumption was 192.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 148]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int pumpRunning = 0; [L598] int systemActive = 1; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L582] int retValue_acc ; [L585] retValue_acc = 1 [L586] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L783] int splverifierCounter ; [L784] int tmp ; [L785] int tmp___0 ; [L786] int tmp___1 ; [L787] int tmp___2 ; [L790] splverifierCounter = 0 [L792] COND TRUE 1 [L794] COND TRUE splverifierCounter < 4 [L800] tmp = __VERIFIER_nondet_int() [L802] COND TRUE \read(tmp) [L804] CALL waterRise() [L867] COND TRUE waterLevel < 2 [L868] waterLevel = waterLevel + 1 [L804] RET waterRise() [L810] tmp___0 = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp___0)) [L820] tmp___2 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] COND TRUE \read(tmp___1) [L830] CALL stopSystem() [L770] COND FALSE !(\read(pumpRunning)) [L777] systemActive = 0 [L830] RET stopSystem() [L837] CALL timeShift() [L604] COND FALSE !(\read(pumpRunning)) [L611] COND FALSE !(\read(systemActive)) [L619] CALL __utac_acc__Specification3_spec__1() [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L163] CALL, EXPR isMethaneLevelCritical() [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); [L163] RET, EXPR isMethaneLevelCritical() [L163] tmp = isMethaneLevelCritical() [L165] COND FALSE !(\read(tmp)) [L169] CALL, EXPR getWaterLevel() [L920] int retValue_acc ; [L923] retValue_acc = waterLevel [L924] return (retValue_acc); [L169] RET, EXPR getWaterLevel() [L169] tmp___0 = getWaterLevel() [L171] COND TRUE tmp___0 == 2 [L173] CALL, EXPR isPumpRunning() [L703] int retValue_acc ; [L706] retValue_acc = pumpRunning [L707] return (retValue_acc); [L173] RET, EXPR isPumpRunning() [L173] tmp___1 = isPumpRunning() [L175] COND FALSE !(\read(tmp___1)) [L179] CALL __automaton_fail() [L148] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 627 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 13.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 853 SDtfs, 1652 SDslu, 1088 SDs, 0 SdLazy, 2574 SolverSat, 591 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1141occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 292 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 15.2s InterpolantComputationTime, 664 NumberOfCodeBlocks, 664 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 484 ConstructedInterpolants, 0 QuantifiedInterpolants, 224639 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...