/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_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:09:59,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:09:59,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:09:59,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:09:59,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:09:59,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:09:59,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:09:59,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:09:59,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:09:59,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:09:59,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:09:59,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:09:59,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:09:59,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:09:59,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:09:59,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:09:59,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:09:59,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:09:59,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:09:59,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:09:59,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:09:59,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:09:59,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:09:59,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:09:59,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:09:59,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:09:59,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:09:59,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:09:59,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:09:59,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:09:59,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:09:59,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:09:59,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:09:59,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:09:59,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:09:59,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:09:59,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:09:59,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:09:59,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:09:59,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:09:59,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:09:59,287 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 11:09:59,337 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:09:59,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:09:59,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:09:59,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:09:59,339 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:09:59,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:09:59,340 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:09:59,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:09:59,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:09:59,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:09:59,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:09:59,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:09:59,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:09:59,343 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:09:59,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:09:59,343 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:09:59,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:09:59,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:09:59,344 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:09:59,344 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:09:59,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:09:59,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:09:59,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:09:59,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:09:59,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:09:59,345 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:09:59,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:09:59,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:09:59,346 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:09:59,346 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 11:09:59,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:09:59,795 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:09:59,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:09:59,801 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:09:59,801 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:09:59,802 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c [2020-09-21 11:09:59,878 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a535533a/c828ebbf37074d8f89b3b09aff43f215/FLAGd95ff9c16 [2020-09-21 11:10:00,463 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:10:00,464 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c [2020-09-21 11:10:00,479 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a535533a/c828ebbf37074d8f89b3b09aff43f215/FLAGd95ff9c16 [2020-09-21 11:10:00,729 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a535533a/c828ebbf37074d8f89b3b09aff43f215 [2020-09-21 11:10:00,742 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:10:00,746 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:10:00,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:10:00,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:10:00,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:10:00,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:10:00" (1/1) ... [2020-09-21 11:10:00,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:00, skipping insertion in model container [2020-09-21 11:10:00,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:10:00" (1/1) ... [2020-09-21 11:10:00,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:10:00,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:10:01,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:10:01,180 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:10:01,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:10:01,401 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:10:01,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:01 WrapperNode [2020-09-21 11:10:01,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:10:01,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:10:01,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:10:01,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:10:01,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:01" (1/1) ... [2020-09-21 11:10:01,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:01" (1/1) ... [2020-09-21 11:10:01,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:01" (1/1) ... [2020-09-21 11:10:01,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:01" (1/1) ... [2020-09-21 11:10:01,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:01" (1/1) ... [2020-09-21 11:10:01,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:01" (1/1) ... [2020-09-21 11:10:01,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:01" (1/1) ... [2020-09-21 11:10:01,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:10:01,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:10:01,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:10:01,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:10:01,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:01" (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 11:10:01,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:10:01,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:10:01,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:10:01,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:10:01,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:10:01,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:10:01,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:10:01,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:10:01,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:10:01,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:10:01,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:10:01,617 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:10:01,617 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:10:01,618 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:10:01,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:10:01,619 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:10:01,619 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:10:01,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 11:10:01,620 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:10:01,620 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:10:01,620 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:10:01,620 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:10:01,621 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:10:01,621 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:10:01,621 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:10:01,622 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:10:01,622 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:10:01,622 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:10:01,623 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:10:01,623 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:10:01,623 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-21 11:10:01,623 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:10:01,623 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:10:01,623 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:10:01,624 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:10:01,624 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:10:01,624 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 11:10:01,624 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:10:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:10:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:10:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:10:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:10:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:10:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:10:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:10:01,627 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:10:01,627 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:10:01,627 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:10:01,628 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:10:01,628 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:10:01,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:10:01,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:10:01,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:10:01,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:10:01,629 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:10:01,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:10:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:10:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:10:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:10:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:10:01,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:10:01,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:10:01,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:10:01,631 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:10:01,632 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:10:01,632 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:10:01,632 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:10:01,632 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 11:10:01,632 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:10:01,632 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:10:01,633 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:10:01,634 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:10:01,634 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:10:01,634 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:10:01,635 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:10:01,636 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:10:01,636 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:10:01,636 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:10:01,636 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:10:01,636 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:10:01,636 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:10:01,636 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:10:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:10:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:10:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 11:10:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-21 11:10:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:10:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:10:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:10:01,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:10:02,764 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:10:02,764 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:10:02,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:10:02 BoogieIcfgContainer [2020-09-21 11:10:02,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:10:02,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:10:02,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:10:02,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:10:02,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:10:00" (1/3) ... [2020-09-21 11:10:02,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c7784f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:10:02, skipping insertion in model container [2020-09-21 11:10:02,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:01" (2/3) ... [2020-09-21 11:10:02,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c7784f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:10:02, skipping insertion in model container [2020-09-21 11:10:02,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:10:02" (3/3) ... [2020-09-21 11:10:02,785 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product25.cil.c [2020-09-21 11:10:02,797 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:10:02,812 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:10:02,835 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:10:02,870 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:10:02,870 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:10:02,871 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:10:02,871 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:10:02,871 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:10:02,871 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:10:02,871 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:10:02,871 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:10:02,895 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2020-09-21 11:10:02,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:10:02,910 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:02,911 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 11:10:02,912 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:02,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:02,920 INFO L82 PathProgramCache]: Analyzing trace with hash -950316372, now seen corresponding path program 1 times [2020-09-21 11:10:02,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:02,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079776337] [2020-09-21 11:10:02,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,285 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,285 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,285 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,285 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:10:03,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:10:03,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:10:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:03,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:03,680 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:03,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,696 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,697 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,697 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,697 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:03,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:03,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:03,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:03,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:03,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:03,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,792 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,792 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,794 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:03,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:10:03,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:03,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:03,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:03,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:03,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,801 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,801 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,802 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,802 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:03,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:03,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:03,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:03,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:03,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:03,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:03,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,811 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,812 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,812 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,812 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:03,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:03,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:03,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:03,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:03,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:03,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,821 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,821 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,822 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,823 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:03,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:10:03,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:03,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:03,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:03,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:03,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:10:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,829 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,830 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,830 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,830 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:03,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:03,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:03,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:03,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:03,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:03,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:10:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,844 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,844 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,844 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,845 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:03,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:03,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:03,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:03,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:10:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,851 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,852 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,852 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,852 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:03,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:03,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:03,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:03,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:03,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:03,874 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 11:10:03,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1079776337] [2020-09-21 11:10:03,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:03,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:10:03,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386033383] [2020-09-21 11:10:03,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:10:03,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:03,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:10:03,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:10:03,911 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 3 states. [2020-09-21 11:10:04,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:04,946 INFO L93 Difference]: Finished difference Result 259 states and 341 transitions. [2020-09-21 11:10:04,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:10:04,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 11:10:04,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:04,967 INFO L225 Difference]: With dead ends: 259 [2020-09-21 11:10:04,968 INFO L226 Difference]: Without dead ends: 140 [2020-09-21 11:10:04,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:10:04,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-09-21 11:10:05,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 110. [2020-09-21 11:10:05,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-09-21 11:10:05,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 128 transitions. [2020-09-21 11:10:05,088 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 128 transitions. Word has length 52 [2020-09-21 11:10:05,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:05,091 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 128 transitions. [2020-09-21 11:10:05,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:10:05,092 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 128 transitions. [2020-09-21 11:10:05,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 11:10:05,099 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:05,099 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 11:10:05,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:10:05,100 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:05,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:05,101 INFO L82 PathProgramCache]: Analyzing trace with hash 878728997, now seen corresponding path program 1 times [2020-09-21 11:10:05,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:05,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1134112765] [2020-09-21 11:10:05,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:05,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:05,172 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:05,172 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:05,173 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:05,173 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:05,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:10:05,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:05,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:10:05,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:10:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:10:05,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:05,535 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:05,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:05,546 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:05,546 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:05,546 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:05,547 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:05,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:05,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:05,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:05,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:05,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:05,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:05,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:05,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:05,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:05,582 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:05,583 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:05,583 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:05,583 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:05,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:05,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:05,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:05,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:05,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:05,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:05,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:05,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:05,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:05,587 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:05,587 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:05,588 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:05,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:05,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:05,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:05,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:05,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:05,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:05,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:05,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:05,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:05,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:05,592 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:05,592 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:05,592 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:05,592 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:05,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:05,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:05,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:05,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:05,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:05,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:05,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:05,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:05,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:05,597 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:05,597 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:05,597 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:05,597 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:05,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:05,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:05,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:05,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:05,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:05,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:05,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:05,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:05,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:05,602 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:05,602 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:05,602 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:05,602 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:05,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:05,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:05,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:05,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:05,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:05,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:05,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:05,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:05,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:10:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:05,607 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:05,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:05,607 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:05,607 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:05,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:05,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:05,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:05,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:05,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:05,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:05,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:05,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:05,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:10:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:05,612 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:05,612 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:05,613 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:05,613 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:05,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:05,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:05,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:05,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:05,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:05,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:05,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:05,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:05,622 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 11:10:05,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1134112765] [2020-09-21 11:10:05,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:05,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:05,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853576327] [2020-09-21 11:10:05,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:05,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:05,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:05,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:05,626 INFO L87 Difference]: Start difference. First operand 110 states and 128 transitions. Second operand 4 states. [2020-09-21 11:10:06,118 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:10:06,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:06,839 INFO L93 Difference]: Finished difference Result 192 states and 232 transitions. [2020-09-21 11:10:06,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:06,840 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 11:10:06,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:06,843 INFO L225 Difference]: With dead ends: 192 [2020-09-21 11:10:06,843 INFO L226 Difference]: Without dead ends: 124 [2020-09-21 11:10:06,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:10:06,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-21 11:10:06,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 101. [2020-09-21 11:10:06,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-21 11:10:06,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 116 transitions. [2020-09-21 11:10:06,876 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 116 transitions. Word has length 53 [2020-09-21 11:10:06,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:06,877 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 116 transitions. [2020-09-21 11:10:06,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:06,877 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-09-21 11:10:06,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:10:06,879 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:06,880 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] [2020-09-21 11:10:06,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:10:06,880 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:06,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:06,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1316004347, now seen corresponding path program 1 times [2020-09-21 11:10:06,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:06,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [877610162] [2020-09-21 11:10:06,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:06,996 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:10:06,996 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:06,996 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:06,996 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:06,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:10:06,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:06,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-21 11:10:06,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:06,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:06,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:06,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:10:06,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:07,306 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:07,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:07,373 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:07,373 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:07,374 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:07,374 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:07,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:07,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:07,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 11:10:07,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:07,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:07,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:07,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:07,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:07,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:07,410 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:07,411 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:07,411 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:07,411 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:07,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:07,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:07,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:07,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:07,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:07,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:07,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:07,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:07,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:07,416 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:07,416 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:07,416 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:07,416 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:07,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:07,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:07,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:07,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:07,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:07,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:07,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:07,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:07,421 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:07,422 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:07,422 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:07,422 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:07,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:07,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:07,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:07,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:07,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:07,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:07,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:07,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:07,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:07,427 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:07,428 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:07,428 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:07,428 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:07,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:07,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:07,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:07,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:07,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:07,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:07,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:07,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:07,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:10:07,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:07,433 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:07,433 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:07,433 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:07,433 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:07,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:07,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:07,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:07,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:07,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:07,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:07,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:07,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:07,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:10:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:07,438 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:07,438 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:07,438 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:07,438 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:07,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:07,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:07,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:07,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:07,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:07,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:07,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:07,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:07,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:10:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:07,442 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:07,443 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:07,443 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:07,443 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:07,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:07,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:07,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:07,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:07,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:07,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:07,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:07,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:07,482 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 11:10:07,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [877610162] [2020-09-21 11:10:07,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:07,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:07,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982866370] [2020-09-21 11:10:07,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:07,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:07,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:07,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:07,485 INFO L87 Difference]: Start difference. First operand 101 states and 116 transitions. Second operand 4 states. [2020-09-21 11:10:07,784 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:08,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:08,437 INFO L93 Difference]: Finished difference Result 201 states and 246 transitions. [2020-09-21 11:10:08,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:08,438 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-09-21 11:10:08,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:08,440 INFO L225 Difference]: With dead ends: 201 [2020-09-21 11:10:08,440 INFO L226 Difference]: Without dead ends: 124 [2020-09-21 11:10:08,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:10:08,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-21 11:10:08,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 101. [2020-09-21 11:10:08,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-21 11:10:08,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2020-09-21 11:10:08,485 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 57 [2020-09-21 11:10:08,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:08,485 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2020-09-21 11:10:08,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:08,486 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2020-09-21 11:10:08,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-21 11:10:08,488 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:08,488 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] [2020-09-21 11:10:08,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:10:08,488 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:08,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:08,489 INFO L82 PathProgramCache]: Analyzing trace with hash -402432006, now seen corresponding path program 1 times [2020-09-21 11:10:08,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:08,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975250130] [2020-09-21 11:10:08,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:08,966 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:08,966 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:08,967 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:08,967 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:08,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:10:08,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:08,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-09-21 11:10:08,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:08,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:10:08,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:08,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-21 11:10:08,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:09,390 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:09,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:09,496 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:09,497 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:09,497 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:09,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:09,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:09,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:09,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-21 11:10:09,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:09,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:09,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:09,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:09,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:09,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:09,547 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:09,547 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:09,547 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:09,547 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:09,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:09,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:09,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:09,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:09,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:09,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:09,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:09,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:09,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:09,552 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:09,553 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:09,553 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:09,553 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:09,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:09,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:09,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:09,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:09,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:09,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:09,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:09,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:09,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:09,558 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:09,558 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:09,559 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:09,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:09,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:09,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:09,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:09,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:09,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:09,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:09,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:09,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:09,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:09,567 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:09,567 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:09,567 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:09,568 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:09,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:09,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:09,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:09,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:09,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:09,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:09,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:09,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:09,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:10:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:09,587 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:09,587 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:09,588 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:09,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:09,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:10:09,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:09,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:09,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:09,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:09,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:09,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:10:09,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:09,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:10:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:09,594 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:09,595 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:09,595 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:09,595 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:09,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:09,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:09,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:09,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:09,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:09,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:09,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:09,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:09,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:10:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:09,602 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:09,603 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:09,603 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:09,604 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:09,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:09,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:09,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:09,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:09,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:09,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:09,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:09,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:09,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 11:10:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:09,614 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:09,614 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:09,614 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:09,615 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:09,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:09,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:09,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:10:09,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:09,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:10:09,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:09,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:09,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:09,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 11:10:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:09,638 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:09,638 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:09,639 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:09,639 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:09,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:09,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:09,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:09,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:09,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:09,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:09,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:09,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:09,660 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 11:10:09,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [975250130] [2020-09-21 11:10:09,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:09,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:10:09,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415753778] [2020-09-21 11:10:09,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:10:09,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:09,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:10:09,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:10:09,664 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand 8 states. [2020-09-21 11:10:10,205 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:11,489 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:11,878 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:12,180 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:12,491 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:13,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:13,082 INFO L93 Difference]: Finished difference Result 299 states and 390 transitions. [2020-09-21 11:10:13,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:10:13,083 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-09-21 11:10:13,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:13,087 INFO L225 Difference]: With dead ends: 299 [2020-09-21 11:10:13,087 INFO L226 Difference]: Without dead ends: 222 [2020-09-21 11:10:13,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 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 11:10:13,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-09-21 11:10:13,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 176. [2020-09-21 11:10:13,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-09-21 11:10:13,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 207 transitions. [2020-09-21 11:10:13,143 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 207 transitions. Word has length 65 [2020-09-21 11:10:13,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:13,144 INFO L479 AbstractCegarLoop]: Abstraction has 176 states and 207 transitions. [2020-09-21 11:10:13,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:10:13,144 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 207 transitions. [2020-09-21 11:10:13,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-21 11:10:13,146 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:13,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:10:13,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:10:13,147 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:13,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:13,147 INFO L82 PathProgramCache]: Analyzing trace with hash 123181088, now seen corresponding path program 1 times [2020-09-21 11:10:13,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:13,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616986867] [2020-09-21 11:10:13,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:13,425 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:13,426 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:13,426 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:13,426 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:13,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:10:13,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:13,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-21 11:10:13,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:13,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:10:13,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-21 11:10:13,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:13,692 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:13,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:13,767 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:13,767 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:13,767 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:13,768 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:13,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:13,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:13,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 11:10:13,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:13,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:13,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:13,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:13,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:13,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:13,802 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:13,802 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:13,802 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:13,802 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:13,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:13,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:13,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:13,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:13,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:13,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:13,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:13,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:13,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:13,807 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:13,807 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:13,807 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:13,807 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:13,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:13,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:13,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:13,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:13,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:13,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:13,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:13,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:13,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:13,812 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:13,813 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:13,813 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:13,813 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:13,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:13,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:13,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:13,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:13,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:13,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:13,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:13,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:13,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:13,818 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:13,818 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:13,818 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:13,818 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:13,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:13,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:13,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:13,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:13,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:13,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:13,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:13,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:13,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:10:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:13,829 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:13,829 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:13,830 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:13,830 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:13,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:13,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:13,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:13,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:13,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:13,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:13,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:13,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:13,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:10:13,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:13,842 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:13,842 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:13,842 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:13,843 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:13,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:10:13,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:13,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:13,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:13,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:13,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:10:13,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:13,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:13,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:10:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:13,847 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:13,847 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:13,847 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:13,847 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:13,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:13,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:13,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:13,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:13,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:13,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:13,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:13,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:13,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:10:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:13,851 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:13,851 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:13,851 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:13,852 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:13,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:13,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:13,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:13,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:13,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:13,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 11:10:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:13,856 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:13,856 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:13,856 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:13,856 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:13,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:13,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:13,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:13,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:13,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:13,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:13,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:13,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:13,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:10:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:13,861 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:13,861 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:13,861 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:13,861 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:13,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:13,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:13,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:13,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:13,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:13,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:13,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:13,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:13,872 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 11:10:13,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616986867] [2020-09-21 11:10:13,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:13,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:10:13,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670228396] [2020-09-21 11:10:13,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:10:13,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:13,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:10:13,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:10:13,874 INFO L87 Difference]: Start difference. First operand 176 states and 207 transitions. Second operand 6 states. [2020-09-21 11:10:14,231 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:14,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:14,819 INFO L93 Difference]: Finished difference Result 289 states and 355 transitions. [2020-09-21 11:10:14,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:10:14,819 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-09-21 11:10:14,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:14,822 INFO L225 Difference]: With dead ends: 289 [2020-09-21 11:10:14,822 INFO L226 Difference]: Without dead ends: 137 [2020-09-21 11:10:14,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:10:14,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-09-21 11:10:14,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 125. [2020-09-21 11:10:14,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-21 11:10:14,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 140 transitions. [2020-09-21 11:10:14,851 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 140 transitions. Word has length 69 [2020-09-21 11:10:14,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:14,852 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 140 transitions. [2020-09-21 11:10:14,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:10:14,852 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 140 transitions. [2020-09-21 11:10:14,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-21 11:10:14,853 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:14,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:10:14,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:10:14,854 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:14,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:14,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1866072192, now seen corresponding path program 1 times [2020-09-21 11:10:14,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:14,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728036394] [2020-09-21 11:10:14,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:10:14,914 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:10:14,914 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:10:14,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:10:14,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:10:14 BoogieIcfgContainer [2020-09-21 11:10:14,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:10:14,947 INFO L168 Benchmark]: Toolchain (without parser) took 14203.73 ms. Allocated memory was 139.5 MB in the beginning and 456.1 MB in the end (delta: 316.7 MB). Free memory was 101.2 MB in the beginning and 362.2 MB in the end (delta: -261.0 MB). Peak memory consumption was 55.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:14,948 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:10:14,949 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.92 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.5 MB in the beginning and 173.3 MB in the end (delta: -72.7 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:14,950 INFO L168 Benchmark]: Boogie Preprocessor took 120.10 ms. Allocated memory is still 203.4 MB. Free memory was 173.3 MB in the beginning and 169.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:14,951 INFO L168 Benchmark]: RCFGBuilder took 1251.03 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 169.2 MB in the beginning and 201.3 MB in the end (delta: -32.2 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:14,951 INFO L168 Benchmark]: TraceAbstraction took 12168.48 ms. Allocated memory was 236.5 MB in the beginning and 456.1 MB in the end (delta: 219.7 MB). Free memory was 199.9 MB in the beginning and 362.2 MB in the end (delta: -162.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:14,955 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 655.92 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.5 MB in the beginning and 173.3 MB in the end (delta: -72.7 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.10 ms. Allocated memory is still 203.4 MB. Free memory was 173.3 MB in the beginning and 169.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1251.03 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 169.2 MB in the beginning and 201.3 MB in the end (delta: -32.2 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12168.48 ms. Allocated memory was 236.5 MB in the beginning and 456.1 MB in the end (delta: 219.7 MB). Free memory was 199.9 MB in the beginning and 362.2 MB in the end (delta: -162.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L256] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L458] int waterLevel = 1; [L459] int methaneLevelCritical = 0; [L585] int cleanupTimeShifts = 4; [L686] int pumpRunning = 0; [L687] int systemActive = 1; [L661] int retValue_acc ; [L662] int tmp ; [L666] FCALL select_helpers() [L667] FCALL select_features() [L668] CALL, EXPR valid_product() [L576] int retValue_acc ; [L579] retValue_acc = 1 [L580] return (retValue_acc); [L668] RET, EXPR valid_product() [L668] tmp = valid_product() [L670] COND TRUE \read(tmp) [L672] FCALL setup() [L673] CALL runTest() [L655] CALL test() [L857] int splverifierCounter ; [L858] int tmp ; [L859] int tmp___0 ; [L860] int tmp___1 ; [L861] int tmp___2 ; [L864] splverifierCounter = 0 [L866] COND TRUE 1 [L868] COND TRUE splverifierCounter < 4 [L874] tmp = __VERIFIER_nondet_int() [L876] COND TRUE \read(tmp) [L878] CALL waterRise() [L476] COND TRUE waterLevel < 2 [L477] waterLevel = waterLevel + 1 [L878] RET waterRise() [L884] tmp___0 = __VERIFIER_nondet_int() [L886] COND FALSE !(\read(tmp___0)) [L894] tmp___2 = __VERIFIER_nondet_int() [L896] COND TRUE \read(tmp___2) [L909] CALL timeShift() [L693] COND FALSE !(\read(pumpRunning)) [L700] COND TRUE \read(systemActive) [L702] CALL processEnvironment() [L722] int tmp ; [L725] COND FALSE !(\read(pumpRunning)) [L740] FCALL processEnvironment__wrappee__base() [L702] RET processEnvironment() [L708] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L497] int retValue_acc ; [L500] retValue_acc = methaneLevelCritical [L501] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L529] int retValue_acc ; [L532] retValue_acc = waterLevel [L533] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L792] int retValue_acc ; [L795] retValue_acc = pumpRunning [L796] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L82] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 447 SDtfs, 600 SDslu, 204 SDs, 0 SdLazy, 997 SolverSat, 347 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=176occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 134 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 365 NumberOfCodeBlocks, 365 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 291 ConstructedInterpolants, 0 QuantifiedInterpolants, 81318 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...