/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 --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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:10:28,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:10:28,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:10:28,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:10:28,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:10:28,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:10:28,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:10:28,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:10:28,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:10:28,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:10:28,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:10:28,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:10:28,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:10:28,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:10:28,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:10:28,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:10:28,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:10:28,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:10:28,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:10:28,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:10:28,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:10:28,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:10:28,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:10:28,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:10:28,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:10:28,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:10:28,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:10:28,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:10:28,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:10:28,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:10:28,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:10:28,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:10:28,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:10:28,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:10:28,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:10:28,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:10:28,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:10:28,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:10:28,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:10:28,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:10:28,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:10:28,294 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 [2020-09-21 11:10:28,338 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:10:28,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:10:28,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:10:28,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:10:28,342 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:10:28,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:10:28,343 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:10:28,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:10:28,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:10:28,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:10:28,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:10:28,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:10:28,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:10:28,345 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:10:28,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:10:28,346 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:10:28,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:10:28,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:10:28,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:10:28,346 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:10:28,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:10:28,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:10:28,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:10:28,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:10:28,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:10:28,348 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:10:28,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:10:28,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:10:28,348 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:10:28,349 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:10:28,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:10:28,874 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:10:28,879 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:10:28,881 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:10:28,881 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:10:28,883 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-09-21 11:10:28,977 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b3daaf03/6183c9b17e5f493cbc24587178734b67/FLAG7c02e111f [2020-09-21 11:10:29,652 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:10:29,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-09-21 11:10:29,667 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b3daaf03/6183c9b17e5f493cbc24587178734b67/FLAG7c02e111f [2020-09-21 11:10:29,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b3daaf03/6183c9b17e5f493cbc24587178734b67 [2020-09-21 11:10:29,921 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:10:29,928 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:10:29,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:10:29,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:10:29,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:10:29,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:10:29" (1/1) ... [2020-09-21 11:10:29,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:29, skipping insertion in model container [2020-09-21 11:10:29,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:10:29" (1/1) ... [2020-09-21 11:10:29,950 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:10:30,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:10:30,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:10:30,550 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:10:30,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:10:30,698 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:10:30,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:30 WrapperNode [2020-09-21 11:10:30,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:10:30,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:10:30,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:10:30,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:10:30,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:30" (1/1) ... [2020-09-21 11:10:30,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:30" (1/1) ... [2020-09-21 11:10:30,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:30" (1/1) ... [2020-09-21 11:10:30,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:30" (1/1) ... [2020-09-21 11:10:30,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:30" (1/1) ... [2020-09-21 11:10:30,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:30" (1/1) ... [2020-09-21 11:10:30,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:30" (1/1) ... [2020-09-21 11:10:30,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:10:30,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:10:30,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:10:30,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:10:30,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:30" (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 [2020-09-21 11:10:30,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:10:30,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:10:30,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:10:30,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:10:30,874 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:10:30,875 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:10:30,875 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:10:30,875 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:10:30,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:10:30,875 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:10:30,876 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:10:30,876 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:10:30,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:10:30,876 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:10:30,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:10:30,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:10:30,877 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:10:30,877 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:10:30,877 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 11:10:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:10:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-21 11:10:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:10:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:10:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:10:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:10:30,879 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:10:30,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:10:30,879 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 11:10:30,879 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 11:10:30,879 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:10:30,879 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:10:30,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:10:30,880 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:10:30,880 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:10:30,880 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:10:30,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:10:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:10:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:10:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:10:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:10:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:10:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:10:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:10:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:10:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:10:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:10:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:10:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:10:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:10:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:10:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:10:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:10:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:10:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:10:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:10:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:10:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:10:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:10:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:10:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:10:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:10:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:10:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:10:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 11:10:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 11:10:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:10:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:10:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:10:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 11:10:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:10:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-21 11:10:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:10:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:10:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:10:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:10:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:10:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:10:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:10:30,888 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:10:30,888 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:10:30,888 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:10:30,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:10:30,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:10:30,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:10:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:10:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:10:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:10:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:10:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:10:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:10:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:10:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:10:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:10:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:10:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:10:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:10:32,089 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:10:32,089 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:10:32,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:10:32 BoogieIcfgContainer [2020-09-21 11:10:32,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:10:32,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:10:32,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:10:32,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:10:32,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:10:29" (1/3) ... [2020-09-21 11:10:32,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13146f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:10:32, skipping insertion in model container [2020-09-21 11:10:32,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:30" (2/3) ... [2020-09-21 11:10:32,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13146f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:10:32, skipping insertion in model container [2020-09-21 11:10:32,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:10:32" (3/3) ... [2020-09-21 11:10:32,112 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2020-09-21 11:10:32,124 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:10:32,137 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:10:32,160 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:10:32,196 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:10:32,196 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:10:32,196 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:10:32,196 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:10:32,196 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:10:32,197 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:10:32,197 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:10:32,197 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:10:32,224 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states. [2020-09-21 11:10:32,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:10:32,236 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:32,238 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] [2020-09-21 11:10:32,238 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:32,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:32,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1986683117, now seen corresponding path program 1 times [2020-09-21 11:10:32,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:32,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018907309] [2020-09-21 11:10:32,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:32,590 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:32,591 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:32,591 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:32,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:32,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:10:32,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:32,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:10:32,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:32,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:32,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:10:32,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:32,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:33,016 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:33,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,034 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,034 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,035 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,035 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:33,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:33,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:33,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:33,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:33,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,131 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,131 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,132 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,132 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:33,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:33,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:33,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:33,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 11:10:33,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,141 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,141 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,143 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:33,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:33,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:33,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:33,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:33,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:33,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,151 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,152 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,152 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,152 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:33,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:33,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:33,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:33,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:33,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:33,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,160 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,161 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,161 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,161 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:33,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:33,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:33,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:33,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:33,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:10:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,168 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,169 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,169 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,169 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:33,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:33,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:33,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:10:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,176 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,177 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,177 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,177 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:33,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:33,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:33,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:33,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:33,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:10:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:33,184 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:33,184 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:33,185 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:33,185 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:33,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:33,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:33,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:33,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:33,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:33,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:33,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:33,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:33,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:33,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018907309] [2020-09-21 11:10:33,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:33,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:10:33,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696393051] [2020-09-21 11:10:33,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:10:33,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:33,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:10:33,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:10:33,235 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 3 states. [2020-09-21 11:10:34,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:34,515 INFO L93 Difference]: Finished difference Result 338 states and 441 transitions. [2020-09-21 11:10:34,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:10:34,518 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 11:10:34,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:34,536 INFO L225 Difference]: With dead ends: 338 [2020-09-21 11:10:34,537 INFO L226 Difference]: Without dead ends: 183 [2020-09-21 11:10:34,543 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 [2020-09-21 11:10:34,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-09-21 11:10:34,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 146. [2020-09-21 11:10:34,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-21 11:10:34,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 173 transitions. [2020-09-21 11:10:34,682 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 173 transitions. Word has length 52 [2020-09-21 11:10:34,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:34,682 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 173 transitions. [2020-09-21 11:10:34,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:10:34,683 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 173 transitions. [2020-09-21 11:10:34,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 11:10:34,686 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:34,687 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] [2020-09-21 11:10:34,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:10:34,687 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:34,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:34,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1294331280, now seen corresponding path program 1 times [2020-09-21 11:10:34,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:34,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431279282] [2020-09-21 11:10:34,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:34,751 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:34,751 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:34,751 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:34,751 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:34,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:10:34,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:34,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:10:34,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:34,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:34,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:10:34,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:10:34,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:35,037 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:35,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:35,046 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:35,046 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:35,047 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:35,047 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:35,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:35,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:35,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:35,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:35,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:35,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:35,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:35,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:35,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:35,086 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:35,086 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:35,086 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:35,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:35,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:35,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:35,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:35,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:35,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:35,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:35,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:35,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:35,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:35,091 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:35,091 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:35,091 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:35,091 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:35,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:35,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:35,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:35,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:35,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:35,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:35,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:35,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:35,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:35,095 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:35,095 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:35,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:35,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:35,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:35,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:35,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:35,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:35,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:35,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:35,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:35,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:35,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:35,101 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:35,101 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:35,101 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:35,102 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:35,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:35,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:35,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:35,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:35,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:35,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:35,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:35,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:35,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:35,106 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:35,106 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:35,106 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:35,106 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:35,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:35,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:35,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:35,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:35,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:35,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:35,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:35,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:35,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:10:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:35,111 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:35,112 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:35,112 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:35,112 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:35,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:35,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:35,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:35,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:35,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:35,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:35,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:35,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:35,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:10:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:35,117 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:35,118 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:35,118 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:35,118 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:35,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:35,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:35,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:35,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:35,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:35,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:35,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:35,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:35,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:35,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1431279282] [2020-09-21 11:10:35,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:35,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:35,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19106157] [2020-09-21 11:10:35,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:35,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:35,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:35,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:35,132 INFO L87 Difference]: Start difference. First operand 146 states and 173 transitions. Second operand 4 states. [2020-09-21 11:10:35,602 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:10:36,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:36,691 INFO L93 Difference]: Finished difference Result 261 states and 320 transitions. [2020-09-21 11:10:36,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:36,692 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 11:10:36,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:36,695 INFO L225 Difference]: With dead ends: 261 [2020-09-21 11:10:36,695 INFO L226 Difference]: Without dead ends: 167 [2020-09-21 11:10:36,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:10:36,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-09-21 11:10:36,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 137. [2020-09-21 11:10:36,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-09-21 11:10:36,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 161 transitions. [2020-09-21 11:10:36,740 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 161 transitions. Word has length 53 [2020-09-21 11:10:36,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:36,741 INFO L479 AbstractCegarLoop]: Abstraction has 137 states and 161 transitions. [2020-09-21 11:10:36,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:36,741 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 161 transitions. [2020-09-21 11:10:36,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-21 11:10:36,743 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:36,744 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] [2020-09-21 11:10:36,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:10:36,744 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:36,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:36,744 INFO L82 PathProgramCache]: Analyzing trace with hash 89991443, now seen corresponding path program 1 times [2020-09-21 11:10:36,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:36,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655940932] [2020-09-21 11:10:36,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:37,178 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:10:37,179 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:37,179 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:37,179 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:37,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-21 11:10:37,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:37,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-09-21 11:10:37,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:37,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:10:37,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:37,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 11:10:37,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:37,460 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:37,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:37,549 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:37,549 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:37,551 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:37,551 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:37,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:37,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:37,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-21 11:10:37,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:37,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:37,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:37,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:37,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:37,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:37,593 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:37,593 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:37,594 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:37,594 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:37,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:37,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:37,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:37,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:37,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:37,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:37,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:37,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:37,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:37,599 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:37,600 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:37,600 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:37,601 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:37,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:37,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:37,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:37,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:37,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:37,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:37,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:37,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:37,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:37,609 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:37,609 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:37,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:37,610 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:37,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:37,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:37,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:37,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:37,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:37,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:37,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:37,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:37,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:37,621 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:37,621 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:37,622 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:37,622 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:37,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:37,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:37,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:37,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:37,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:37,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:37,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:37,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:37,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:10:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:37,627 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:37,627 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:37,628 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:37,628 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:37,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:37,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:37,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:37,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:37,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:37,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:37,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:37,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:37,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:10:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:37,633 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:37,633 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:37,633 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:37,633 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:37,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:37,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:37,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:37,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:37,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:37,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:37,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:37,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:37,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:10:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:37,638 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:37,639 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:37,639 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:37,639 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:37,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:37,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:37,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:37,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:37,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:37,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:37,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:37,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:37,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:37,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [655940932] [2020-09-21 11:10:37,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:37,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:37,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133911504] [2020-09-21 11:10:37,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:37,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:37,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:37,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:37,653 INFO L87 Difference]: Start difference. First operand 137 states and 161 transitions. Second operand 4 states. [2020-09-21 11:10:38,013 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:39,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:39,849 INFO L93 Difference]: Finished difference Result 407 states and 503 transitions. [2020-09-21 11:10:39,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:39,850 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-09-21 11:10:39,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:39,856 INFO L225 Difference]: With dead ends: 407 [2020-09-21 11:10:39,857 INFO L226 Difference]: Without dead ends: 294 [2020-09-21 11:10:39,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:10:39,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-09-21 11:10:39,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 240. [2020-09-21 11:10:39,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-21 11:10:39,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 289 transitions. [2020-09-21 11:10:39,932 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 289 transitions. Word has length 58 [2020-09-21 11:10:39,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:39,932 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 289 transitions. [2020-09-21 11:10:39,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:39,932 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 289 transitions. [2020-09-21 11:10:39,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-21 11:10:39,935 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:39,936 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] [2020-09-21 11:10:39,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:10:39,936 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:39,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:39,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1771452602, now seen corresponding path program 1 times [2020-09-21 11:10:39,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:39,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969974938] [2020-09-21 11:10:39,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:40,407 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:40,408 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:40,408 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:40,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:40,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 11:10:40,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:40,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-09-21 11:10:40,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:10:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 11:10:40,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:40,729 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:40,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:40,809 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:40,810 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:40,810 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:40,810 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:40,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:40,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:40,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-21 11:10:40,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:40,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:40,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:40,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:40,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:40,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:40,857 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:40,857 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:40,857 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:40,858 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:40,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:40,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:40,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:40,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:40,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:40,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:40,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:40,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:40,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:40,865 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:40,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:40,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:40,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:40,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:40,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:40,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:40,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:40,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:40,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:40,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:40,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:40,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:40,880 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:40,880 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:40,880 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:40,880 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:40,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:40,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:40,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:40,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:40,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:40,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:40,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:40,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:40,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:40,890 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:40,890 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:40,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:40,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:40,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:40,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:40,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:40,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:40,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:40,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:40,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:40,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:40,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:40,917 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:40,917 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:40,918 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:40,918 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:40,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:10:40,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:40,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:40,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:40,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:40,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:40,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:10:40,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:40,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:10:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:40,928 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:40,928 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:40,929 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:40,929 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:40,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:40,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:40,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:40,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:40,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:40,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:40,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:40,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:40,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:10:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:40,938 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:40,939 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:40,939 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:40,940 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:40,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:40,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:40,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:10:40,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:40,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:10:40,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:40,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:40,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:40,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 11:10:40,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:40,971 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:40,971 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:40,972 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:40,972 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:40,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:40,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:40,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:40,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:40,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:40,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:40,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:40,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:40,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:40,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969974938] [2020-09-21 11:10:40,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:40,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:10:40,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092626244] [2020-09-21 11:10:40,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:10:40,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:40,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:10:41,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:10:41,000 INFO L87 Difference]: Start difference. First operand 240 states and 289 transitions. Second operand 8 states. [2020-09-21 11:10:41,547 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:43,210 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:43,674 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:44,026 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:44,319 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:45,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:45,263 INFO L93 Difference]: Finished difference Result 751 states and 982 transitions. [2020-09-21 11:10:45,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:10:45,263 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-09-21 11:10:45,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:45,270 INFO L225 Difference]: With dead ends: 751 [2020-09-21 11:10:45,270 INFO L226 Difference]: Without dead ends: 535 [2020-09-21 11:10:45,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:10:45,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2020-09-21 11:10:45,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 463. [2020-09-21 11:10:45,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-09-21 11:10:45,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 567 transitions. [2020-09-21 11:10:45,416 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 567 transitions. Word has length 63 [2020-09-21 11:10:45,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:45,417 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 567 transitions. [2020-09-21 11:10:45,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:10:45,417 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 567 transitions. [2020-09-21 11:10:45,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:10:45,421 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:45,421 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] [2020-09-21 11:10:45,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:10:45,422 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:45,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:45,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1264714804, now seen corresponding path program 1 times [2020-09-21 11:10:45,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:45,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1899364001] [2020-09-21 11:10:45,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:45,783 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:45,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:45,783 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:45,783 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:45,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-09-21 11:10:45,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:45,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-09-21 11:10:45,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:45,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:10:45,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:45,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:10:45,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:46,070 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:46,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:46,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:46,163 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:46,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:46,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:46,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:46,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:46,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-21 11:10:46,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:46,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:46,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:46,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:46,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:46,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:46,203 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:46,203 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:46,203 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:46,203 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:46,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:46,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:46,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:46,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:46,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:46,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:46,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:46,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:46,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:46,209 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:46,209 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:46,209 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:46,210 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:46,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:46,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:46,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:46,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:46,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:46,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:46,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:46,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:46,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:46,215 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:46,216 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:46,216 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:46,216 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:46,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:46,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:46,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:46,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:46,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:46,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:46,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:46,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:46,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:46,222 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:46,223 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:46,223 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:46,223 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:46,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:46,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:46,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:46,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:46,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:46,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:46,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:46,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:46,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:46,238 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:46,238 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:46,238 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:46,239 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:46,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:10:46,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:46,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:46,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:46,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:46,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:46,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:46,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:46,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:10:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:46,254 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:46,254 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:46,255 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:46,255 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:46,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:46,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:46,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:46,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:46,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:46,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:46,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:46,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:46,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:10:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:46,261 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:46,261 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:46,261 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:46,261 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:46,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:46,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:46,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:46,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:46,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:46,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:46,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:46,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:46,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:10:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:46,266 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:46,266 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:46,266 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:46,266 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:46,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:46,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:46,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:46,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:46,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:46,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:46,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:46,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:46,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:10:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:46,271 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:46,271 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:46,271 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:46,271 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:46,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:46,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:46,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:46,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:46,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:46,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:46,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:46,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:46,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:46,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1899364001] [2020-09-21 11:10:46,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:46,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:10:46,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473103717] [2020-09-21 11:10:46,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:10:46,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:46,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:10:46,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:10:46,289 INFO L87 Difference]: Start difference. First operand 463 states and 567 transitions. Second operand 6 states. [2020-09-21 11:10:46,654 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:48,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:48,839 INFO L93 Difference]: Finished difference Result 1193 states and 1543 transitions. [2020-09-21 11:10:48,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:10:48,839 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-09-21 11:10:48,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:48,846 INFO L225 Difference]: With dead ends: 1193 [2020-09-21 11:10:48,846 INFO L226 Difference]: Without dead ends: 754 [2020-09-21 11:10:48,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:10:48,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2020-09-21 11:10:49,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 685. [2020-09-21 11:10:49,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2020-09-21 11:10:49,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 830 transitions. [2020-09-21 11:10:49,050 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 830 transitions. Word has length 67 [2020-09-21 11:10:49,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:49,051 INFO L479 AbstractCegarLoop]: Abstraction has 685 states and 830 transitions. [2020-09-21 11:10:49,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:10:49,051 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 830 transitions. [2020-09-21 11:10:49,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:10:49,053 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:49,053 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] [2020-09-21 11:10:49,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:10:49,054 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:49,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:49,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1282483756, now seen corresponding path program 1 times [2020-09-21 11:10:49,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:49,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [158152319] [2020-09-21 11:10:49,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:49,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:10:49,111 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:10:49,111 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:10:49,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:10:49,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:10:49 BoogieIcfgContainer [2020-09-21 11:10:49,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:10:49,147 INFO L168 Benchmark]: Toolchain (without parser) took 19223.53 ms. Allocated memory was 147.3 MB in the beginning and 545.3 MB in the end (delta: 397.9 MB). Free memory was 102.4 MB in the beginning and 442.4 MB in the end (delta: -340.0 MB). Peak memory consumption was 57.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:49,148 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:10:49,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.61 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 101.8 MB in the beginning and 172.1 MB in the end (delta: -70.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:49,150 INFO L168 Benchmark]: Boogie Preprocessor took 96.56 ms. Allocated memory is still 203.4 MB. Free memory was 172.1 MB in the beginning and 168.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:49,151 INFO L168 Benchmark]: RCFGBuilder took 1303.97 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 168.0 MB in the beginning and 197.6 MB in the end (delta: -29.6 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:49,152 INFO L168 Benchmark]: TraceAbstraction took 17042.45 ms. Allocated memory was 237.0 MB in the beginning and 545.3 MB in the end (delta: 308.3 MB). Free memory was 196.1 MB in the beginning and 442.4 MB in the end (delta: -246.3 MB). Peak memory consumption was 62.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:49,156 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 769.61 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 101.8 MB in the beginning and 172.1 MB in the end (delta: -70.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.56 ms. Allocated memory is still 203.4 MB. Free memory was 172.1 MB in the beginning and 168.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1303.97 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 168.0 MB in the beginning and 197.6 MB in the end (delta: -29.6 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17042.45 ms. Allocated memory was 237.0 MB in the beginning and 545.3 MB in the end (delta: 308.3 MB). Free memory was 196.1 MB in the beginning and 442.4 MB in the end (delta: -246.3 MB). Peak memory consumption was 62.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L129] int waterLevel = 1; [L130] int methaneLevelCritical = 0; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L447] int cleanupTimeShifts = 4; [L782] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L521] int retValue_acc ; [L522] int tmp ; [L526] FCALL select_helpers() [L527] FCALL select_features() [L528] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L528] RET, EXPR valid_product() [L528] tmp = valid_product() [L530] COND TRUE \read(tmp) [L532] FCALL setup() [L533] CALL runTest() [L515] CALL test() [L545] int splverifierCounter ; [L546] int tmp ; [L547] int tmp___0 ; [L548] int tmp___1 ; [L549] int tmp___2 ; [L552] splverifierCounter = 0 [L554] COND TRUE 1 [L556] COND TRUE splverifierCounter < 4 [L562] tmp = __VERIFIER_nondet_int() [L564] COND TRUE \read(tmp) [L566] CALL waterRise() [L147] COND TRUE waterLevel < 2 [L148] waterLevel = waterLevel + 1 [L566] RET waterRise() [L572] tmp___0 = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp___0)) [L582] tmp___2 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___2)) [L590] tmp___1 = __VERIFIER_nondet_int() [L592] COND TRUE \read(tmp___1) [L594] CALL stopSystem() [L427] COND FALSE !(\read(pumpRunning)) [L434] systemActive = 0 [L594] RET stopSystem() [L601] CALL timeShift() [L236] COND FALSE !(\read(pumpRunning)) [L243] COND FALSE !(\read(systemActive)) [L251] CALL __utac_acc__Specification3_spec__1() [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L97] CALL, EXPR isMethaneLevelCritical() [L168] int retValue_acc ; [L171] retValue_acc = methaneLevelCritical [L172] return (retValue_acc); [L97] RET, EXPR isMethaneLevelCritical() [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L103] CALL, EXPR getWaterLevel() [L200] int retValue_acc ; [L203] retValue_acc = waterLevel [L204] return (retValue_acc); [L103] RET, EXPR getWaterLevel() [L103] tmp___0 = getWaterLevel() [L105] COND TRUE tmp___0 == 2 [L107] CALL, EXPR isPumpRunning() [L360] int retValue_acc ; [L363] retValue_acc = pumpRunning [L364] return (retValue_acc); [L107] RET, EXPR isPumpRunning() [L107] tmp___1 = isPumpRunning() [L109] COND FALSE !(\read(tmp___1)) [L113] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 690 SDtfs, 1098 SDslu, 340 SDs, 0 SdLazy, 1779 SolverSat, 735 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=685occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 262 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 81576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...