/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=0.3 --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 12:04:16,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:04:16,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:04:16,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:04:16,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:04:16,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:04:16,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:04:16,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:04:16,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:04:16,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:04:16,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:04:16,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:04:16,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:04:16,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:04:16,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:04:16,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:04:16,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:04:16,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:04:16,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:04:16,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:04:16,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:04:16,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:04:16,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:04:16,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:04:16,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:04:16,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:04:16,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:04:16,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:04:16,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:04:16,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:04:16,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:04:16,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:04:16,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:04:16,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:04:16,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:04:16,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:04:16,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:04:16,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:04:16,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:04:16,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:04:16,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:04:16,923 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 12:04:16,949 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:04:16,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:04:16,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:04:16,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:04:16,951 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:04:16,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:04:16,951 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:04:16,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:04:16,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:04:16,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:04:16,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:04:16,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:04:16,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:04:16,953 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:04:16,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:04:16,953 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:04:16,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:04:16,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:04:16,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:04:16,954 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:04:16,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:04:16,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:04:16,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:04:16,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:04:16,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:04:16,955 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:04:16,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:04:16,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:04:16,956 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:04:16,956 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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;log-additional-information=true; [2020-09-25 12:04:17,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:04:17,383 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:04:17,387 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:04:17,389 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:04:17,389 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:04:17,390 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-09-25 12:04:17,459 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7099d75b4/e1f3580a57b648a4a8a0a9b4964de629/FLAG23b3b4266 [2020-09-25 12:04:18,020 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:04:18,021 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-09-25 12:04:18,035 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7099d75b4/e1f3580a57b648a4a8a0a9b4964de629/FLAG23b3b4266 [2020-09-25 12:04:18,293 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7099d75b4/e1f3580a57b648a4a8a0a9b4964de629 [2020-09-25 12:04:18,307 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:04:18,313 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:04:18,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:04:18,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:04:18,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:04:18,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:04:18" (1/1) ... [2020-09-25 12:04:18,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:18, skipping insertion in model container [2020-09-25 12:04:18,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:04:18" (1/1) ... [2020-09-25 12:04:18,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:04:18,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:04:18,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:04:18,976 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:04:19,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:04:19,102 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:04:19,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:19 WrapperNode [2020-09-25 12:04:19,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:04:19,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:04:19,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:04:19,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:04:19,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:19" (1/1) ... [2020-09-25 12:04:19,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:19" (1/1) ... [2020-09-25 12:04:19,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:19" (1/1) ... [2020-09-25 12:04:19,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:19" (1/1) ... [2020-09-25 12:04:19,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:19" (1/1) ... [2020-09-25 12:04:19,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:19" (1/1) ... [2020-09-25 12:04:19,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:19" (1/1) ... [2020-09-25 12:04:19,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:04:19,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:04:19,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:04:19,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:04:19,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:19" (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 12:04:19,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:04:19,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:04:19,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 12:04:19,291 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 12:04:19,291 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 12:04:19,291 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 12:04:19,291 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 12:04:19,292 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:04:19,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 12:04:19,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 12:04:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 12:04:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 12:04:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 12:04:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 12:04:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 12:04:19,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 12:04:19,294 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 12:04:19,295 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 12:04:19,295 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 12:04:19,295 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 12:04:19,295 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 12:04:19,296 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 12:04:19,296 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 12:04:19,296 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 12:04:19,296 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 12:04:19,297 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 12:04:19,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 12:04:19,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 12:04:19,298 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 12:04:19,298 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 12:04:19,298 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 12:04:19,298 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 12:04:19,298 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 12:04:19,298 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 12:04:19,299 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 12:04:19,299 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 12:04:19,299 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 12:04:19,299 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 12:04:19,299 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 12:04:19,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:04:19,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:04:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:04:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 12:04:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 12:04:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 12:04:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 12:04:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 12:04:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 12:04:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 12:04:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 12:04:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 12:04:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 12:04:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 12:04:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 12:04:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:04:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 12:04:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 12:04:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 12:04:19,303 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 12:04:19,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 12:04:19,303 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 12:04:19,303 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:04:19,303 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:04:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 12:04:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:04:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:04:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:04:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:04:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 12:04:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:04:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 12:04:19,307 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 12:04:19,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:04:19,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 12:04:19,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 12:04:19,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:04:19,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 12:04:19,308 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 12:04:19,308 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 12:04:19,308 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 12:04:19,308 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 12:04:19,308 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 12:04:19,309 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 12:04:19,310 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 12:04:19,310 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 12:04:19,310 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 12:04:19,310 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 12:04:19,311 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 12:04:19,312 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 12:04:19,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:04:19,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 12:04:19,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:04:20,425 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:04:20,426 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:04:20,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:04:20 BoogieIcfgContainer [2020-09-25 12:04:20,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:04:20,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:04:20,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:04:20,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:04:20,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:04:18" (1/3) ... [2020-09-25 12:04:20,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5d32b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:04:20, skipping insertion in model container [2020-09-25 12:04:20,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:19" (2/3) ... [2020-09-25 12:04:20,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5d32b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:04:20, skipping insertion in model container [2020-09-25 12:04:20,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:04:20" (3/3) ... [2020-09-25 12:04:20,442 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2020-09-25 12:04:20,453 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:04:20,464 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:04:20,484 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:04:20,514 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:04:20,515 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:04:20,515 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:04:20,515 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:04:20,515 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:04:20,515 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:04:20,515 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:04:20,515 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:04:20,539 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-09-25 12:04:20,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 12:04:20,556 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:04:20,557 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 12:04:20,558 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:04:20,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:04:20,564 INFO L82 PathProgramCache]: Analyzing trace with hash -377200977, now seen corresponding path program 1 times [2020-09-25 12:04:20,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:04:20,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520117490] [2020-09-25 12:04:20,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:04:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:21,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:21,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:22,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:26,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:26,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 12:04:26,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:04:26,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5085 [2020-09-25 12:04:26,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:26,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:26,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 12:04:26,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 12:04:26,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 12:04:26,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 12:04:26,577 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:04:26,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:04:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:26,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:26,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:26,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:04:26,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:26,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-09-25 12:04:26,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:26,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:26,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:26,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:26,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 12:04:26,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:26,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:04:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:26,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:26,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:26,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:26,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:26,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:04:26,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:26,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:26,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:26,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:26,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:26,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:26,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:04:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:26,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:26,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:26,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:26,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:26,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:04:26,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:26,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:26,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:26,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:26,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:26,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:26,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:04:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:26,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:27,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:27,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:27,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:27,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:04:27,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:27,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:27,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:27,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:27,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:27,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:27,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:04:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:27,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:27,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:27,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:27,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:27,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:04:27,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:27,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:27,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:27,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:27,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:27,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:27,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 12:04:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:27,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:27,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:27,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:27,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:27,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:04:27,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:27,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:27,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:27,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:27,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:27,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:27,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 12:04:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:27,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:27,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:27,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:27,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:27,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:04:27,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:27,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:27,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:04:27,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:27,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:27,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:27,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 12:04:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:27,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:27,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:27,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:27,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:27,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:04:27,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:27,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:27,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:27,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:27,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:27,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:27,158 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 12:04:27,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520117490] [2020-09-25 12:04:27,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:04:27,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:04:27,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371443945] [2020-09-25 12:04:27,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:04:27,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:04:27,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:04:27,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:04:27,199 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 8 states. [2020-09-25 12:04:27,808 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:04:29,389 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:04:29,757 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:04:30,132 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:04:30,465 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:04:30,779 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:04:31,122 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:04:31,440 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:04:32,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:04:32,860 INFO L93 Difference]: Finished difference Result 662 states and 809 transitions. [2020-09-25 12:04:32,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:04:32,862 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 12:04:32,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:04:32,884 INFO L225 Difference]: With dead ends: 662 [2020-09-25 12:04:32,884 INFO L226 Difference]: Without dead ends: 458 [2020-09-25 12:04:32,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:04:32,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2020-09-25 12:04:33,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 410. [2020-09-25 12:04:33,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-09-25 12:04:33,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 461 transitions. [2020-09-25 12:04:33,054 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 461 transitions. Word has length 153 [2020-09-25 12:04:33,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:04:33,058 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 461 transitions. [2020-09-25 12:04:33,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:04:33,058 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 461 transitions. [2020-09-25 12:04:33,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 12:04:33,074 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:04:33,075 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] [2020-09-25 12:04:33,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:04:33,075 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:04:33,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:04:33,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1971495200, now seen corresponding path program 1 times [2020-09-25 12:04:33,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:04:33,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769221142] [2020-09-25 12:04:33,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:04:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:33,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:34,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:34,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 12:04:34,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:34,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1262 [2020-09-25 12:04:34,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:34,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:34,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:04:34,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 12:04:34,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 12:04:34,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:34,897 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:04:34,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:04:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:34,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:35,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:35,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:04:35,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:35,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-25 12:04:35,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:35,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:35,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:35,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:35,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 12:04:35,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:04:35,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:04:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:35,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:35,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:35,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:35,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:35,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:04:35,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:35,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:35,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:35,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:35,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:35,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:35,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:04:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:35,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:35,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:35,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:35,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:35,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:04:35,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:35,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:35,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:35,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:35,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:35,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:35,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:04:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:35,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:35,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:35,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:35,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:35,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:04:35,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:35,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:35,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:35,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:35,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:35,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:35,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:04:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:35,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:35,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:35,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:35,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:35,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:04:35,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:35,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:35,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:35,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:35,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:35,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:35,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 12:04:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:35,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:35,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:35,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:04:35,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:35,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:04:35,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:35,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:35,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:35,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:35,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:04:35,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:35,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 12:04:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:35,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:35,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:35,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:35,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:35,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:35,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:35,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:35,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:35,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:35,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:35,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:35,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 12:04:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:35,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:35,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:35,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:35,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:35,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:35,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:35,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:35,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:35,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:35,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:35,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:35,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 12:04:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:35,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:35,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:35,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:35,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:35,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:35,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:35,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:35,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:35,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:35,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:35,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:04:35,370 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 12:04:35,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769221142] [2020-09-25 12:04:35,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:04:35,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:04:35,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607817130] [2020-09-25 12:04:35,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:04:35,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:04:35,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:04:35,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:04:35,375 INFO L87 Difference]: Start difference. First operand 410 states and 461 transitions. Second operand 6 states. [2020-09-25 12:04:35,835 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:04:36,576 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:04:39,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:04:39,211 INFO L93 Difference]: Finished difference Result 1276 states and 1571 transitions. [2020-09-25 12:04:39,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 12:04:39,211 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2020-09-25 12:04:39,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:04:39,221 INFO L225 Difference]: With dead ends: 1276 [2020-09-25 12:04:39,221 INFO L226 Difference]: Without dead ends: 976 [2020-09-25 12:04:39,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:04:39,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2020-09-25 12:04:39,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 843. [2020-09-25 12:04:39,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 843 states. [2020-09-25 12:04:39,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 983 transitions. [2020-09-25 12:04:39,367 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 983 transitions. Word has length 168 [2020-09-25 12:04:39,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:04:39,368 INFO L479 AbstractCegarLoop]: Abstraction has 843 states and 983 transitions. [2020-09-25 12:04:39,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:04:39,368 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 983 transitions. [2020-09-25 12:04:39,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 12:04:39,372 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:04:39,373 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 12:04:39,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:04:39,373 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:04:39,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:04:39,374 INFO L82 PathProgramCache]: Analyzing trace with hash 762484350, now seen corresponding path program 1 times [2020-09-25 12:04:39,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:04:39,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [220295310] [2020-09-25 12:04:39,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:04:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:39,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:39,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:40,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:43,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:43,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:44,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:44,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 12:04:44,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:04:44,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 12:04:44,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:44,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:44,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:04:44,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-09-25 12:04:44,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 12:04:44,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:44,738 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:04:44,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:04:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:44,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:44,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:44,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:04:44,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:44,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 12:04:44,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:44,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:44,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:44,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:44,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:44,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:44,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:04:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:44,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:44,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:44,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:44,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:44,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:44,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:44,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:44,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:44,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:44,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:44,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:44,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:04:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:44,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:44,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:44,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:44,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:44,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:44,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:44,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:44,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:44,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:44,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:44,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 12:04:44,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:04:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:44,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:44,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:44,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:44,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:44,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:04:44,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:44,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:44,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:44,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:44,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:44,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:44,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:04:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:44,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:44,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:44,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:44,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:44,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:04:44,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:44,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:44,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:44,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:44,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:44,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:44,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 12:04:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:44,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:44,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:44,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:04:44,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:44,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:04:44,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:44,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:44,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:44,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:44,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:04:44,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:44,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 12:04:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:44,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:44,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:44,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:44,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:04:44,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:04:44,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:04:44,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:44,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:44,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:04:44,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:04:44,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:04:44,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:44,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:04:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:44,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:44,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:44,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:44,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:44,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:44,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:44,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:44,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:44,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:44,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:44,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:44,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 12:04:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:44,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:44,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:44,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:44,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:44,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:04:44,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:44,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:44,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:44,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:44,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:44,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:04:44,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 12:04:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:44,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:44,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:44,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:44,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:44,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:04:44,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:44,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:44,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:44,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:44,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:44,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:04:44,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 12:04:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:44,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:44,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:44,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:44,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:44,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:04:44,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:44,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:44,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:04:44,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:44,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:44,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:45,049 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 12:04:45,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [220295310] [2020-09-25 12:04:45,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:04:45,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 12:04:45,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669032461] [2020-09-25 12:04:45,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:04:45,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:04:45,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:04:45,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:04:45,053 INFO L87 Difference]: Start difference. First operand 843 states and 983 transitions. Second operand 10 states. [2020-09-25 12:04:45,846 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:04:47,661 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:04:47,998 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:04:48,333 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:04:48,754 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:04:49,065 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:04:49,546 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:04:49,871 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:04:50,409 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:04:51,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:04:51,585 INFO L93 Difference]: Finished difference Result 2326 states and 2984 transitions. [2020-09-25 12:04:51,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 12:04:51,586 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-25 12:04:51,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:04:51,600 INFO L225 Difference]: With dead ends: 2326 [2020-09-25 12:04:51,600 INFO L226 Difference]: Without dead ends: 1452 [2020-09-25 12:04:51,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 12:04:51,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2020-09-25 12:04:51,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 1189. [2020-09-25 12:04:51,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1189 states. [2020-09-25 12:04:51,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1356 transitions. [2020-09-25 12:04:51,746 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1356 transitions. Word has length 167 [2020-09-25 12:04:51,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:04:51,747 INFO L479 AbstractCegarLoop]: Abstraction has 1189 states and 1356 transitions. [2020-09-25 12:04:51,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:04:51,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1356 transitions. [2020-09-25 12:04:51,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 12:04:51,752 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:04:51,752 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 12:04:51,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:04:51,753 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:04:51,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:04:51,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1797665662, now seen corresponding path program 1 times [2020-09-25 12:04:51,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:04:51,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315988966] [2020-09-25 12:04:51,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:04:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 12:04:51,815 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 12:04:51,815 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 12:04:51,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:04:51,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:04:51 BoogieIcfgContainer [2020-09-25 12:04:51,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 12:04:51,857 INFO L168 Benchmark]: Toolchain (without parser) took 33548.05 ms. Allocated memory was 138.9 MB in the beginning and 662.7 MB in the end (delta: 523.8 MB). Free memory was 101.1 MB in the beginning and 372.6 MB in the end (delta: -271.5 MB). Peak memory consumption was 252.3 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:51,858 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 12:04:51,860 INFO L168 Benchmark]: CACSL2BoogieTranslator took 789.52 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.5 MB in the beginning and 170.6 MB in the end (delta: -70.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:51,866 INFO L168 Benchmark]: Boogie Preprocessor took 94.76 ms. Allocated memory is still 202.4 MB. Free memory was 170.6 MB in the beginning and 166.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:51,867 INFO L168 Benchmark]: RCFGBuilder took 1233.41 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 166.4 MB in the beginning and 176.3 MB in the end (delta: -9.8 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:51,868 INFO L168 Benchmark]: TraceAbstraction took 31421.15 ms. Allocated memory was 234.9 MB in the beginning and 662.7 MB in the end (delta: 427.8 MB). Free memory was 174.8 MB in the beginning and 372.6 MB in the end (delta: -197.8 MB). Peak memory consumption was 230.0 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:51,881 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 789.52 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.5 MB in the beginning and 170.6 MB in the end (delta: -70.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.76 ms. Allocated memory is still 202.4 MB. Free memory was 170.6 MB in the beginning and 166.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1233.41 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 166.4 MB in the beginning and 176.3 MB in the end (delta: -9.8 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31421.15 ms. Allocated memory was 234.9 MB in the beginning and 662.7 MB in the end (delta: 427.8 MB). Free memory was 174.8 MB in the beginning and 372.6 MB in the end (delta: -197.8 MB). Peak memory consumption was 230.0 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: 31.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 16.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 869 SDtfs, 1711 SDslu, 1763 SDs, 0 SdLazy, 3961 SolverSat, 589 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1189occurred 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, 444 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 13.8s InterpolantComputationTime, 665 NumberOfCodeBlocks, 665 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 485 ConstructedInterpolants, 0 QuantifiedInterpolants, 215272 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...