/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=SMALLEST --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_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:00:49,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:00:49,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:00:49,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:00:49,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:00:49,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:00:49,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:00:49,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:00:49,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:00:49,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:00:49,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:00:49,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:00:49,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:00:49,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:00:49,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:00:49,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:00:49,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:00:49,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:00:49,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:00:49,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:00:49,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:00:49,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:00:49,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:00:49,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:00:49,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:00:49,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:00:49,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:00:49,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:00:49,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:00:49,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:00:49,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:00:49,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:00:49,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:00:49,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:00:49,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:00:49,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:00:49,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:00:49,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:00:49,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:00:49,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:00:49,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:00:49,566 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 [2020-09-24 18:00:49,620 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:00:49,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:00:49,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:00:49,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:00:49,623 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:00:49,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:00:49,624 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:00:49,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:00:49,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:00:49,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:00:49,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:00:49,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:00:49,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:00:49,627 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:00:49,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:00:49,627 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:00:49,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:00:49,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:00:49,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:00:49,628 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:00:49,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:00:49,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:00:49,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:00:49,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:00:49,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:00:49,630 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:00:49,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:00:49,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:00:49,630 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:00:49,631 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:00:50,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:00:50,115 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:00:50,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:00:50,122 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:00:50,122 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:00:50,123 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c [2020-09-24 18:00:50,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98fdf9e57/e27ca86ce1504246b5ca9eaeb63dc7f8/FLAG60e05b345 [2020-09-24 18:00:50,862 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:00:50,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c [2020-09-24 18:00:50,880 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98fdf9e57/e27ca86ce1504246b5ca9eaeb63dc7f8/FLAG60e05b345 [2020-09-24 18:00:51,146 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98fdf9e57/e27ca86ce1504246b5ca9eaeb63dc7f8 [2020-09-24 18:00:51,158 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:00:51,164 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:00:51,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:00:51,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:00:51,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:00:51,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:00:51" (1/1) ... [2020-09-24 18:00:51,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d90d57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51, skipping insertion in model container [2020-09-24 18:00:51,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:00:51" (1/1) ... [2020-09-24 18:00:51,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:00:51,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:00:51,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:00:51,753 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:00:51,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:00:51,879 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:00:51,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51 WrapperNode [2020-09-24 18:00:51,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:00:51,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:00:51,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:00:51,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:00:51,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51" (1/1) ... [2020-09-24 18:00:51,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51" (1/1) ... [2020-09-24 18:00:51,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51" (1/1) ... [2020-09-24 18:00:51,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51" (1/1) ... [2020-09-24 18:00:51,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51" (1/1) ... [2020-09-24 18:00:51,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51" (1/1) ... [2020-09-24 18:00:51,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51" (1/1) ... [2020-09-24 18:00:51,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:00:51,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:00:51,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:00:51,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:00:51,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51" (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 [2020-09-24 18:00:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:00:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:00:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:00:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:00:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:00:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:00:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:00:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:00:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:00:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:00:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:00:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:00:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:00:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:00:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 18:00:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:00:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:00:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:00:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:00:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:00:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:00:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:00:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:00:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:00:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:00:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:00:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:00:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:00:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:00:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 18:00:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:00:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:00:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:00:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:00:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:00:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:00:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:00:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:00:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:00:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:00:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:00:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:00:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:00:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:00:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:00:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:00:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:00:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:00:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:00:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:00:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:00:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:00:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:00:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:00:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:00:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:00:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:00:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:00:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 18:00:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:00:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:00:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:00:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:00:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:00:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:00:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:00:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:00:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:00:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:00:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:00:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:00:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:00:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:00:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:00:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:00:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:00:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:00:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:00:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:00:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:00:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:00:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:00:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:00:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 18:00:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:00:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:00:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:00:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:00:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:00:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:00:53,353 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:00:53,353 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:00:53,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:00:53 BoogieIcfgContainer [2020-09-24 18:00:53,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:00:53,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:00:53,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:00:53,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:00:53,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:00:51" (1/3) ... [2020-09-24 18:00:53,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e257f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:00:53, skipping insertion in model container [2020-09-24 18:00:53,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51" (2/3) ... [2020-09-24 18:00:53,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e257f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:00:53, skipping insertion in model container [2020-09-24 18:00:53,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:00:53" (3/3) ... [2020-09-24 18:00:53,371 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product18.cil.c [2020-09-24 18:00:53,384 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:00:53,396 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:00:53,419 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:00:53,452 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:00:53,452 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:00:53,452 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:00:53,453 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:00:53,453 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:00:53,453 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:00:53,453 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:00:53,453 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:00:53,482 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states. [2020-09-24 18:00:53,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 18:00:53,502 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:00:53,503 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] [2020-09-24 18:00:53,513 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:00:53,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:00:53,522 INFO L82 PathProgramCache]: Analyzing trace with hash -255597227, now seen corresponding path program 1 times [2020-09-24 18:00:53,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:00:53,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1492364187] [2020-09-24 18:00:53,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:00:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:54,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:54,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:56,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:58,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:58,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 18:00:58,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:00:58,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-24 18:00:58,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:58,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:58,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:00:58,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:58,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 18:00:59,475 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:00:59,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:00:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:59,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:59,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:59,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:00:59,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:59,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-24 18:00:59,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:59,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:59,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:59,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:59,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:59,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:00:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:59,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:59,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:59,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:59,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:59,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:00:59,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:59,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:59,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:59,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:59,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:59,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:00:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:59,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:59,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:59,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:59,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:59,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:00:59,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:59,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:59,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:59,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:59,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:59,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:00:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:59,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:59,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:59,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:59,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:59,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:00:59,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:59,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:59,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:59,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:59,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:59,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:00:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:59,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:59,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:59,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:59,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:59,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:00:59,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:59,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:59,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:59,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:59,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:00:59,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:59,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:59,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:59,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:59,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:59,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:00:59,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:59,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:59,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:59,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:59,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:59,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:00:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:59,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:59,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:59,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:59,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:59,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:00:59,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:59,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:59,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:59,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:59,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:59,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 18:00:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:59,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:59,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:59,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:59,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:59,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:59,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:59,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:59,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:59,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:00:59,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1492364187] [2020-09-24 18:00:59,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:00:59,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:00:59,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365605968] [2020-09-24 18:00:59,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:00:59,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:00:59,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:00:59,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:00:59,952 INFO L87 Difference]: Start difference. First operand 296 states. Second operand 3 states. [2020-09-24 18:01:01,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:01:01,357 INFO L93 Difference]: Finished difference Result 444 states and 527 transitions. [2020-09-24 18:01:01,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:01:01,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 18:01:01,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:01:01,385 INFO L225 Difference]: With dead ends: 444 [2020-09-24 18:01:01,385 INFO L226 Difference]: Without dead ends: 279 [2020-09-24 18:01:01,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:01:01,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-24 18:01:01,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 239. [2020-09-24 18:01:01,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-24 18:01:01,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 257 transitions. [2020-09-24 18:01:01,508 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 257 transitions. Word has length 153 [2020-09-24 18:01:01,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:01:01,509 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 257 transitions. [2020-09-24 18:01:01,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:01:01,510 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 257 transitions. [2020-09-24 18:01:01,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 18:01:01,521 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:01,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:01:01,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:01:01,522 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:01,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:01,523 INFO L82 PathProgramCache]: Analyzing trace with hash 73238065, now seen corresponding path program 1 times [2020-09-24 18:01:01,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:01,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [35194082] [2020-09-24 18:01:01,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:01,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:01,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:03,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 18:01:06,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:01:06,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-24 18:01:06,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:06,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:01:06,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:01:06,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:06,897 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:01:06,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:01:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:07,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:07,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:01:07,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:07,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 18:01:07,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:07,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:07,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:07,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:07,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:07,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:01:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:07,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:07,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:07,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:07,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:07,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:07,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:07,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:07,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:07,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:07,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:07,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:01:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:07,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:07,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:07,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:07,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:07,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:07,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:07,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:07,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:07,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:07,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:07,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:01:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:07,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:07,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:07,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:07,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:07,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:07,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:07,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:07,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:07,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:07,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:07,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:01:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:07,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:07,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:07,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:07,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:07,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:01:07,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:07,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:07,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:07,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:07,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:07,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 18:01:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:07,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:07,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:07,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:07,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:07,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:07,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:07,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:07,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:07,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:07,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:07,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 18:01:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:07,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:07,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:07,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:07,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:07,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:07,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:07,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:07,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:07,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:07,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:07,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 18:01:07,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:07,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:07,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:07,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:07,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:07,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:07,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:07,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:07,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:07,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:07,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:07,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:01:07,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [35194082] [2020-09-24 18:01:07,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:01:07,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:01:07,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835744432] [2020-09-24 18:01:07,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:01:07,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:01:07,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:01:07,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:01:07,128 INFO L87 Difference]: Start difference. First operand 239 states and 257 transitions. Second operand 4 states. [2020-09-24 18:01:07,728 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:01:08,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:01:08,584 INFO L93 Difference]: Finished difference Result 357 states and 398 transitions. [2020-09-24 18:01:08,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:01:08,585 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 18:01:08,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:01:08,589 INFO L225 Difference]: With dead ends: 357 [2020-09-24 18:01:08,590 INFO L226 Difference]: Without dead ends: 262 [2020-09-24 18:01:08,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:01:08,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-09-24 18:01:08,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 229. [2020-09-24 18:01:08,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-09-24 18:01:08,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 244 transitions. [2020-09-24 18:01:08,633 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 244 transitions. Word has length 154 [2020-09-24 18:01:08,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:01:08,634 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 244 transitions. [2020-09-24 18:01:08,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:01:08,634 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 244 transitions. [2020-09-24 18:01:08,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 18:01:08,637 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:08,637 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] [2020-09-24 18:01:08,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:01:08,638 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:08,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:08,638 INFO L82 PathProgramCache]: Analyzing trace with hash 304341534, now seen corresponding path program 1 times [2020-09-24 18:01:08,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:08,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1080160642] [2020-09-24 18:01:08,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:08,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:08,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:11,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:11,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 18:01:11,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:01:11,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2939 [2020-09-24 18:01:11,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:11,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:11,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 18:01:11,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:01:11,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:11,924 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:01:11,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:01:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:11,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:12,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:12,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:01:12,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:12,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 18:01:12,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:12,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:12,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:12,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:12,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:12,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:01:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:12,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:12,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:12,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:12,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:12,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:12,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:12,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:12,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:12,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:12,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:12,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:01:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:12,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:12,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:12,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:12,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:12,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:12,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:12,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:12,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:12,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:12,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:01:12,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:01:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:12,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:12,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:12,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:12,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:12,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:01:12,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:12,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:12,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:12,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:12,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:12,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:01:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:12,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:12,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:12,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:12,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:12,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:12,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:12,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:12,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:12,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:12,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:12,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:01:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:12,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:12,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:12,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:01:12,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:12,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:01:12,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:12,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:12,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:12,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:01:12,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:12,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 18:01:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:12,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:12,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:12,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:12,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:12,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:01:12,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:12,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:12,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:12,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:12,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:12,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 18:01:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:12,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:12,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:12,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:12,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:12,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:12,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:12,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:12,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:12,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:12,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:12,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 18:01:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:12,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:12,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:12,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:12,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:12,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:12,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:12,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:12,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:12,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:12,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:12,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:01:12,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1080160642] [2020-09-24 18:01:12,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:01:12,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:01:12,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722011053] [2020-09-24 18:01:12,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:01:12,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:01:12,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:01:12,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:01:12,244 INFO L87 Difference]: Start difference. First operand 229 states and 244 transitions. Second operand 5 states. [2020-09-24 18:01:12,750 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:01:13,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:01:13,633 INFO L93 Difference]: Finished difference Result 403 states and 460 transitions. [2020-09-24 18:01:13,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:01:13,634 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-24 18:01:13,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:01:13,638 INFO L225 Difference]: With dead ends: 403 [2020-09-24 18:01:13,641 INFO L226 Difference]: Without dead ends: 284 [2020-09-24 18:01:13,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:01:13,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-24 18:01:13,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 229. [2020-09-24 18:01:13,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-09-24 18:01:13,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 243 transitions. [2020-09-24 18:01:13,679 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 243 transitions. Word has length 167 [2020-09-24 18:01:13,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:01:13,679 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 243 transitions. [2020-09-24 18:01:13,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:01:13,680 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 243 transitions. [2020-09-24 18:01:13,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 18:01:13,683 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:13,683 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] [2020-09-24 18:01:13,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:01:13,684 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:13,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:13,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1214766301, now seen corresponding path program 1 times [2020-09-24 18:01:13,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:13,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1102196646] [2020-09-24 18:01:13,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:13,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:15,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:15,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-24 18:01:15,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:15,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1842 [2020-09-24 18:01:15,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:15,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 18:01:15,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 18:01:15,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 18:01:15,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:15,920 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:01:15,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:01:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:15,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:16,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:16,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:01:16,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:16,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-24 18:01:16,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:16,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:16,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:16,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 18:01:16,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:16,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:01:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:16,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:16,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:16,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:16,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:16,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:16,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:16,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:16,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:16,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:01:16,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:16,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:01:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:16,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:16,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:16,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:16,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:16,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:16,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:16,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:16,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:16,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:01:16,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:16,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:01:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:16,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:16,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:16,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:16,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:16,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:01:16,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:16,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:16,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:16,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:01:16,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:16,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:01:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:16,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:16,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:16,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:16,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:16,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:16,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:16,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:16,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:16,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:01:16,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:16,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:01:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:16,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:16,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:16,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:01:16,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:16,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:01:16,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:16,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:16,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:16,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 18:01:16,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:16,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:01:16,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:16,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:16,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:16,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 18:01:16,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:16,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:01:16,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:16,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:16,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:16,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 18:01:16,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:16,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:01:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:16,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:16,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:16,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:16,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:16,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:16,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:16,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:16,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:16,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:16,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:16,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-24 18:01:16,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:16,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:16,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:16,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:16,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:16,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:01:16,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:16,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:16,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:16,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:01:16,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:16,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 18:01:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:16,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:16,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:16,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:16,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:16,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:01:16,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:16,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:01:16,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:01:16,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:16,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 18:01:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:16,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:16,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:16,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:16,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:16,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:16,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:16,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:16,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:16,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:16,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:16,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:01:16,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1102196646] [2020-09-24 18:01:16,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:01:16,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:01:16,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817841758] [2020-09-24 18:01:16,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:01:16,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:01:16,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:01:16,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:01:16,409 INFO L87 Difference]: Start difference. First operand 229 states and 243 transitions. Second operand 10 states. [2020-09-24 18:01:16,993 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:01:18,733 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:01:19,131 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:01:19,519 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:01:19,854 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:01:20,166 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:01:20,538 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:01:20,849 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:01:21,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:01:21,954 INFO L93 Difference]: Finished difference Result 625 states and 767 transitions. [2020-09-24 18:01:21,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 18:01:21,954 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 175 [2020-09-24 18:01:21,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:01:21,962 INFO L225 Difference]: With dead ends: 625 [2020-09-24 18:01:21,962 INFO L226 Difference]: Without dead ends: 506 [2020-09-24 18:01:21,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-09-24 18:01:21,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2020-09-24 18:01:22,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 340. [2020-09-24 18:01:22,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-09-24 18:01:22,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 371 transitions. [2020-09-24 18:01:22,032 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 371 transitions. Word has length 175 [2020-09-24 18:01:22,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:01:22,033 INFO L479 AbstractCegarLoop]: Abstraction has 340 states and 371 transitions. [2020-09-24 18:01:22,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 18:01:22,033 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 371 transitions. [2020-09-24 18:01:22,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-24 18:01:22,036 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:22,036 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, 1, 1, 1] [2020-09-24 18:01:22,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:01:22,037 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:22,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:22,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1778118102, now seen corresponding path program 1 times [2020-09-24 18:01:22,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:22,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433391797] [2020-09-24 18:01:22,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:01:22,102 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:01:22,103 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:01:22,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:01:22,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:01:22 BoogieIcfgContainer [2020-09-24 18:01:22,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:01:22,138 INFO L168 Benchmark]: Toolchain (without parser) took 30977.59 ms. Allocated memory was 138.4 MB in the beginning and 618.1 MB in the end (delta: 479.7 MB). Free memory was 99.5 MB in the beginning and 424.7 MB in the end (delta: -325.2 MB). Peak memory consumption was 154.5 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:22,139 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 138.4 MB. Free memory was 119.2 MB in the beginning and 118.8 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-24 18:01:22,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.15 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.0 MB in the beginning and 168.8 MB in the end (delta: -69.8 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:22,140 INFO L168 Benchmark]: Boogie Preprocessor took 103.94 ms. Allocated memory is still 201.3 MB. Free memory was 168.8 MB in the beginning and 164.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:22,141 INFO L168 Benchmark]: RCFGBuilder took 1375.79 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 164.7 MB in the beginning and 175.6 MB in the end (delta: -10.9 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:22,142 INFO L168 Benchmark]: TraceAbstraction took 28773.41 ms. Allocated memory was 231.2 MB in the beginning and 618.1 MB in the end (delta: 386.9 MB). Free memory was 175.6 MB in the beginning and 424.7 MB in the end (delta: -249.1 MB). Peak memory consumption was 137.8 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:22,146 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 138.4 MB. Free memory was 119.2 MB in the beginning and 118.8 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 715.15 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.0 MB in the beginning and 168.8 MB in the end (delta: -69.8 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.94 ms. Allocated memory is still 201.3 MB. Free memory was 168.8 MB in the beginning and 164.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1375.79 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 164.7 MB in the beginning and 175.6 MB in the end (delta: -10.9 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28773.41 ms. Allocated memory was 231.2 MB in the beginning and 618.1 MB in the end (delta: 386.9 MB). Free memory was 175.6 MB in the beginning and 424.7 MB in the end (delta: -249.1 MB). Peak memory consumption was 137.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 910]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L149] int waterLevel = 1; [L150] int methaneLevelCritical = 0; [L407] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L608] int pumpRunning = 0; [L609] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L862] int retValue_acc ; [L865] retValue_acc = 1 [L866] 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() [L770] int splverifierCounter ; [L771] int tmp ; [L772] int tmp___0 ; [L773] int tmp___1 ; [L774] int tmp___2 ; [L777] splverifierCounter = 0 [L779] COND TRUE 1 [L781] COND TRUE splverifierCounter < 4 [L787] tmp = __VERIFIER_nondet_int() [L789] COND TRUE \read(tmp) [L791] CALL waterRise() [L167] COND TRUE waterLevel < 2 [L168] waterLevel = waterLevel + 1 [L791] RET waterRise() [L797] tmp___0 = __VERIFIER_nondet_int() [L799] COND FALSE !(\read(tmp___0)) [L807] tmp___2 = __VERIFIER_nondet_int() [L809] COND TRUE \read(tmp___2) [L811] CALL startSystem() [L764] systemActive = 1 [L811] RET startSystem() [L824] CALL timeShift() [L616] COND FALSE !(\read(pumpRunning)) [L623] COND TRUE \read(systemActive) [L625] CALL processEnvironment() [L645] int tmp ; [L648] COND FALSE !(\read(pumpRunning)) [L663] FCALL processEnvironment__wrappee__base() [L625] RET processEnvironment() [L631] CALL __utac_acc__Specification3_spec__1() [L873] int tmp ; [L874] int tmp___0 ; [L875] int tmp___1 ; [L879] CALL, EXPR isMethaneLevelCritical() [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] return (retValue_acc); [L879] RET, EXPR isMethaneLevelCritical() [L879] tmp = isMethaneLevelCritical() [L881] COND FALSE !(\read(tmp)) [L885] CALL, EXPR getWaterLevel() [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); [L885] RET, EXPR getWaterLevel() [L885] tmp___0 = getWaterLevel() [L887] COND TRUE tmp___0 == 2 [L889] CALL, EXPR isPumpRunning() [L697] int retValue_acc ; [L700] retValue_acc = pumpRunning [L701] return (retValue_acc); [L889] RET, EXPR isPumpRunning() [L889] tmp___1 = isPumpRunning() [L891] COND FALSE !(\read(tmp___1)) [L895] CALL __automaton_fail() [L910] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 613 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 880 SDtfs, 1239 SDslu, 801 SDs, 0 SdLazy, 1912 SolverSat, 387 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=340occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 294 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.6s InterpolantComputationTime, 829 NumberOfCodeBlocks, 829 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 645 ConstructedInterpolants, 0 QuantifiedInterpolants, 246908 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...