/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_spec1_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:05:04,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:05:04,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:05:04,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:05:04,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:05:04,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:05:04,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:05:04,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:05:04,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:05:04,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:05:04,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:05:04,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:05:04,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:05:04,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:05:04,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:05:04,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:05:04,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:05:04,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:05:04,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:05:04,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:05:04,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:05:04,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:05:04,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:05:04,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:05:04,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:05:04,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:05:04,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:05:04,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:05:04,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:05:04,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:05:04,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:05:04,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:05:04,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:05:04,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:05:04,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:05:04,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:05:04,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:05:04,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:05:04,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:05:04,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:05:04,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:05:04,213 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 11:05:04,260 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:05:04,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:05:04,264 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:05:04,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:05:04,264 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:05:04,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:05:04,265 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:05:04,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:05:04,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:05:04,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:05:04,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:05:04,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:05:04,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:05:04,268 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:05:04,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:05:04,268 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:05:04,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:05:04,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:05:04,269 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:05:04,269 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:05:04,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:05:04,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:05:04,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:05:04,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:05:04,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:05:04,270 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:05:04,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:05:04,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:05:04,271 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:05:04,271 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 11:05:04,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:05:04,768 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:05:04,773 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:05:04,774 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:05:04,775 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:05:04,776 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c [2020-09-21 11:05:04,865 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad1512a31/30b3c4db0ef34b81a3fe681c1ae318ca/FLAGec5f6a05e [2020-09-21 11:05:05,477 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:05:05,478 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c [2020-09-21 11:05:05,499 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad1512a31/30b3c4db0ef34b81a3fe681c1ae318ca/FLAGec5f6a05e [2020-09-21 11:05:05,708 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad1512a31/30b3c4db0ef34b81a3fe681c1ae318ca [2020-09-21 11:05:05,721 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:05:05,727 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:05:05,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:05:05,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:05:05,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:05:05,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:05:05" (1/1) ... [2020-09-21 11:05:05,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c8aa329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:05, skipping insertion in model container [2020-09-21 11:05:05,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:05:05" (1/1) ... [2020-09-21 11:05:05,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:05:05,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:05:06,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:05:06,315 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:05:06,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:05:06,438 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:05:06,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:06 WrapperNode [2020-09-21 11:05:06,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:05:06,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:05:06,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:05:06,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:05:06,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:06" (1/1) ... [2020-09-21 11:05:06,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:06" (1/1) ... [2020-09-21 11:05:06,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:06" (1/1) ... [2020-09-21 11:05:06,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:06" (1/1) ... [2020-09-21 11:05:06,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:06" (1/1) ... [2020-09-21 11:05:06,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:06" (1/1) ... [2020-09-21 11:05:06,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:06" (1/1) ... [2020-09-21 11:05:06,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:05:06,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:05:06,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:05:06,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:05:06,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:06" (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 11:05:06,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:05:06,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:05:06,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:05:06,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-21 11:05:06,625 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:05:06,625 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:05:06,625 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:05:06,625 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:05:06,626 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:05:06,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:05:06,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:05:06,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:05:06,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:05:06,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:05:06,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:05:06,627 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:05:06,627 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:05:06,627 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:05:06,628 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:05:06,628 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:05:06,628 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:05:06,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:05:06,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:05:06,629 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:05:06,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:05:06,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 11:05:06,629 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:05:06,629 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:05:06,630 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:05:06,630 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:05:06,630 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:05:06,630 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:05:06,630 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:05:06,631 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:05:06,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:05:06,631 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:05:06,631 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:05:06,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:05:06,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 11:05:06,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:05:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:05:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:05:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:05:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:05:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:05:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:05:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-21 11:05:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:05:06,634 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:05:06,634 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:05:06,634 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:05:06,634 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:05:06,634 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:05:06,634 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:05:06,635 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:05:06,635 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:05:06,635 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:05:06,635 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:05:06,635 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:05:06,635 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:05:06,636 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:05:06,636 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:05:06,636 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:05:06,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:05:06,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:05:06,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:05:06,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:05:06,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:05:06,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:05:06,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:05:06,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:05:06,637 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:05:06,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:05:06,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:05:06,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:05:06,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:05:06,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:05:06,638 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:05:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:05:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:05:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 11:05:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:05:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:05:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:05:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:05:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:05:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:05:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 11:05:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:05:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:05:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:05:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:05:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:05:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:05:07,696 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:05:07,696 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:05:07,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:05:07 BoogieIcfgContainer [2020-09-21 11:05:07,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:05:07,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:05:07,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:05:07,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:05:07,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:05:05" (1/3) ... [2020-09-21 11:05:07,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c994253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:05:07, skipping insertion in model container [2020-09-21 11:05:07,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:06" (2/3) ... [2020-09-21 11:05:07,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c994253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:05:07, skipping insertion in model container [2020-09-21 11:05:07,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:05:07" (3/3) ... [2020-09-21 11:05:07,711 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product49.cil.c [2020-09-21 11:05:07,722 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:05:07,732 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:05:07,755 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:05:07,785 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:05:07,786 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:05:07,786 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:05:07,786 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:05:07,786 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:05:07,786 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:05:07,787 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:05:07,787 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:05:07,821 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states. [2020-09-21 11:05:07,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 11:05:07,838 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:07,840 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] [2020-09-21 11:05:07,840 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:07,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:07,851 INFO L82 PathProgramCache]: Analyzing trace with hash 922466731, now seen corresponding path program 1 times [2020-09-21 11:05:07,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:07,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1590144405] [2020-09-21 11:05:07,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:08,222 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:08,222 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:08,222 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:08,223 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:08,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-21 11:05:08,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:08,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:05:08,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:08,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:08,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:05:08,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:08,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:08,622 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:05:08,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:05:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:08,637 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:08,638 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:08,638 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:08,638 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:08,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:08,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:08,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:08,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:08,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:08,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:08,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:08,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:08,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:05:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:08,730 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:08,731 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:08,731 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:08,732 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:08,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:08,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:08,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:05:08,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:08,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:08,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:08,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:08,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:08,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:05:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:08,742 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:08,743 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:08,743 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:08,743 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:08,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:08,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:08,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:08,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:08,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:08,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:08,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:08,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:08,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:05:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:08,753 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:08,754 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:08,754 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:08,755 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:08,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:08,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:08,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:05:08,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:08,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:08,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:08,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:08,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:08,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:05:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:08,762 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:08,762 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:08,763 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:08,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:08,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:08,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:08,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:05:08,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:08,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:08,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:08,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:08,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:08,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:05:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:08,771 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:08,771 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:08,771 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:08,772 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:08,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:08,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:08,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:08,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:08,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:08,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:08,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:08,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:08,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:05:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:08,788 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:08,788 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:08,788 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:08,789 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:08,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:08,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:08,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:08,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:08,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:08,837 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 11:05:08,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1590144405] [2020-09-21 11:05:08,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:05:08,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:05:08,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366700799] [2020-09-21 11:05:08,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:05:08,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:05:08,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:05:08,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:05:08,872 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 3 states. [2020-09-21 11:05:09,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:05:09,945 INFO L93 Difference]: Finished difference Result 297 states and 388 transitions. [2020-09-21 11:05:09,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:05:09,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 11:05:09,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:05:09,965 INFO L225 Difference]: With dead ends: 297 [2020-09-21 11:05:09,965 INFO L226 Difference]: Without dead ends: 160 [2020-09-21 11:05:09,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:05:09,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-21 11:05:10,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 128. [2020-09-21 11:05:10,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-21 11:05:10,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2020-09-21 11:05:10,073 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 46 [2020-09-21 11:05:10,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:05:10,074 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2020-09-21 11:05:10,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:05:10,074 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2020-09-21 11:05:10,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 11:05:10,078 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:10,078 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] [2020-09-21 11:05:10,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:05:10,079 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:10,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:10,079 INFO L82 PathProgramCache]: Analyzing trace with hash 288176866, now seen corresponding path program 1 times [2020-09-21 11:05:10,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:10,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342991246] [2020-09-21 11:05:10,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:10,160 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:10,160 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:10,160 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:10,160 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:10,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:05:10,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:10,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:05:10,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:10,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:10,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:05:10,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:05:10,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:10,461 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:05:10,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:05:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:10,470 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:10,471 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:10,471 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:10,471 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:10,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:10,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:10,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:10,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:10,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:10,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:10,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:10,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:10,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:05:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:10,510 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:10,511 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:10,511 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:10,511 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:10,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:10,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:10,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:10,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:10,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:10,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:10,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:10,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:10,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:05:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:10,516 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:10,516 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:10,517 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:10,517 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:10,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:10,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:10,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:10,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:10,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:10,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:10,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:10,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:10,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:05:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:10,522 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:10,522 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:10,522 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:10,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:10,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:10,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:10,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:10,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:10,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:10,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:10,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:10,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:10,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:05:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:10,528 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:10,528 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:10,528 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:10,529 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:10,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:10,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:10,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:10,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:10,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:10,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:10,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:10,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:10,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:05:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:10,533 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:10,533 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:10,533 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:10,534 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:10,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:10,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:10,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:10,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:10,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:10,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:10,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:10,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:10,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:05:10,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:10,538 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:10,539 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:10,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:10,539 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:10,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:10,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:10,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:10,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:10,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:10,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:10,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:10,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:10,548 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 11:05:10,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342991246] [2020-09-21 11:05:10,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:05:10,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:05:10,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605037244] [2020-09-21 11:05:10,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:05:10,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:05:10,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:05:10,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:05:10,552 INFO L87 Difference]: Start difference. First operand 128 states and 150 transitions. Second operand 4 states. [2020-09-21 11:05:11,045 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:05:11,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:05:11,981 INFO L93 Difference]: Finished difference Result 230 states and 279 transitions. [2020-09-21 11:05:11,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:05:11,982 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 11:05:11,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:05:11,985 INFO L225 Difference]: With dead ends: 230 [2020-09-21 11:05:11,985 INFO L226 Difference]: Without dead ends: 144 [2020-09-21 11:05:11,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:05:11,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-09-21 11:05:12,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 119. [2020-09-21 11:05:12,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-09-21 11:05:12,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2020-09-21 11:05:12,026 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 47 [2020-09-21 11:05:12,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:05:12,027 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2020-09-21 11:05:12,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:05:12,027 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2020-09-21 11:05:12,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 11:05:12,029 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:12,029 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] [2020-09-21 11:05:12,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:05:12,030 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:12,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:12,030 INFO L82 PathProgramCache]: Analyzing trace with hash -2059632594, now seen corresponding path program 1 times [2020-09-21 11:05:12,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:12,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1750686772] [2020-09-21 11:05:12,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:12,169 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:05:12,170 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:12,170 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:12,170 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:12,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-21 11:05:12,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:12,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-21 11:05:12,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:12,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:05:12,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:12,471 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:05:12,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:05:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:12,536 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:12,537 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:12,537 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:12,537 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:12,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:12,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:12,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:05:12,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:12,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:12,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:12,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:05:12,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:12,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:05:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:12,573 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:12,573 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:12,573 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:12,573 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:12,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:12,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:12,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:12,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:12,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:12,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:12,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:12,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:12,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:05:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:12,578 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:12,579 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:12,579 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:12,579 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:12,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:12,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:12,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:12,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:12,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:12,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:12,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:12,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:12,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:05:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:12,584 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:12,584 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:12,584 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:12,585 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:12,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:12,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:12,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:12,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:12,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:12,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:12,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:12,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:12,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:05:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:12,590 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:12,590 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:12,591 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:12,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:12,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:12,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:12,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:12,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:12,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:12,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:05:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:12,595 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:12,595 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:12,596 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:12,596 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:12,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:12,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:12,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:12,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:12,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:12,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:05:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:12,600 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:12,601 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:12,601 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:12,601 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:12,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:12,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:12,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:12,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:12,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:12,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:12,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:12,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:12,610 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 11:05:12,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1750686772] [2020-09-21 11:05:12,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:05:12,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:05:12,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782211688] [2020-09-21 11:05:12,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:05:12,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:05:12,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:05:12,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:05:12,612 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand 4 states. [2020-09-21 11:05:12,954 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:05:13,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:05:13,812 INFO L93 Difference]: Finished difference Result 239 states and 293 transitions. [2020-09-21 11:05:13,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:05:13,813 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 11:05:13,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:05:13,816 INFO L225 Difference]: With dead ends: 239 [2020-09-21 11:05:13,816 INFO L226 Difference]: Without dead ends: 144 [2020-09-21 11:05:13,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 11:05:13,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-09-21 11:05:13,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 119. [2020-09-21 11:05:13,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-09-21 11:05:13,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2020-09-21 11:05:13,854 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 51 [2020-09-21 11:05:13,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:05:13,855 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2020-09-21 11:05:13,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:05:13,855 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2020-09-21 11:05:13,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-21 11:05:13,857 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:13,857 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] [2020-09-21 11:05:13,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:05:13,858 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:13,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:13,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1182566725, now seen corresponding path program 1 times [2020-09-21 11:05:13,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:13,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1008592979] [2020-09-21 11:05:13,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:14,230 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:14,230 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:14,230 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:14,231 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:14,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-09-21 11:05:14,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:14,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-09-21 11:05:14,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:14,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 11:05:14,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:14,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-21 11:05:14,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:14,612 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:05:14,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:05:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:14,687 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:14,688 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:14,688 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:14,689 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:14,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:14,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:14,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 11:05:14,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:14,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:14,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:14,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:05:14,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:14,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:05:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:14,731 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:14,731 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:14,731 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:14,732 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:14,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:14,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:14,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:14,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:14,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:14,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:14,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:14,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:14,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:05:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:14,738 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:14,738 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:14,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:14,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:14,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:14,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:14,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:14,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:14,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:14,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:14,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:14,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:14,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:05:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:14,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:14,746 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:14,746 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:14,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:14,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:14,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:14,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:14,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:14,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:14,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:14,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:14,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:14,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:05:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:14,753 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:14,754 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:14,754 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:14,754 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:14,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:14,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:14,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:05:14,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:14,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:14,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:14,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:14,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:14,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:05:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:14,775 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:14,776 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:14,776 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:14,776 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:14,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:05:14,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:14,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:05:14,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:14,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:05:14,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 11:05:14,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:05:14,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:14,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:14,791 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:14,792 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:14,792 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:14,792 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:14,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:05:14,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:14,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:05:14,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:14,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:05:14,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:05:14,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:05:14,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:14,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:14,864 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:14,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:14,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:14,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:14,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:14,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:14,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:05:14,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:14,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:14,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:14,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:14,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:14,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:05:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:14,874 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:14,874 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:14,874 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:14,875 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:14,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:14,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:14,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:14,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:14,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:14,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:14,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:14,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:14,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 11:05:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:14,881 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:14,882 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:14,882 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:14,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:14,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:14,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:14,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:14,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:14,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:14,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:14,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:14,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:14,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:05:14,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1008592979] [2020-09-21 11:05:14,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:05:14,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:05:14,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402448407] [2020-09-21 11:05:14,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:05:14,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:05:14,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:05:14,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:05:14,909 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 7 states. [2020-09-21 11:05:15,277 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:05:16,552 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:05:17,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:05:17,239 INFO L93 Difference]: Finished difference Result 331 states and 409 transitions. [2020-09-21 11:05:17,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:05:17,240 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-09-21 11:05:17,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:05:17,244 INFO L225 Difference]: With dead ends: 331 [2020-09-21 11:05:17,244 INFO L226 Difference]: Without dead ends: 236 [2020-09-21 11:05:17,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:05:17,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-09-21 11:05:17,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 195. [2020-09-21 11:05:17,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-21 11:05:17,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 222 transitions. [2020-09-21 11:05:17,295 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 222 transitions. Word has length 64 [2020-09-21 11:05:17,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:05:17,296 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 222 transitions. [2020-09-21 11:05:17,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:05:17,296 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 222 transitions. [2020-09-21 11:05:17,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 11:05:17,298 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:17,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:05:17,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:05:17,299 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:17,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:17,299 INFO L82 PathProgramCache]: Analyzing trace with hash 590157777, now seen corresponding path program 1 times [2020-09-21 11:05:17,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:17,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1317483036] [2020-09-21 11:05:17,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:17,621 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:17,622 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:17,622 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:17,622 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:17,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:05:17,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:17,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-09-21 11:05:17,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:17,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:05:17,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:17,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-21 11:05:17,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:17,982 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:05:17,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:05:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:18,035 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:18,035 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:18,035 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:18,035 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:18,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:18,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:18,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-21 11:05:18,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:18,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:18,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:18,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:05:18,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:18,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:05:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:18,070 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:18,071 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:18,071 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:18,071 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:18,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:18,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:18,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:05:18,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:18,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:18,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:18,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:18,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:18,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:05:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:18,075 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:18,076 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:18,076 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:18,076 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:18,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:18,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:18,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:18,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:18,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:18,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:18,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:18,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:18,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:05:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:18,081 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:18,081 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:18,082 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:18,082 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:18,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:18,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:18,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:18,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:18,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:18,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:18,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:18,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:18,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:05:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:18,088 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:18,088 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:18,088 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:18,089 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:18,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:18,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:18,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:05:18,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:18,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:18,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:18,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:18,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:18,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:05:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:18,109 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:18,110 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:18,110 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:18,110 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:18,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:05:18,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:18,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:18,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:18,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:18,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:18,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-21 11:05:18,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:18,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:18,119 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:18,119 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:18,119 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:18,119 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:18,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:05:18,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:18,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:18,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:18,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:18,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:18,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:18,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:18,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:18,126 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:18,127 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:18,127 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:18,127 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:18,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:05:18,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:18,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:18,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:18,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:18,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:18,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:18,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:18,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:05:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:18,134 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:18,134 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:18,134 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:18,135 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:18,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:05:18,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:18,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:05:18,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:18,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:18,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:18,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:18,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:18,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:05:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:18,139 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:18,139 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:18,139 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:18,140 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:18,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:18,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:18,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:18,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:18,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:18,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:18,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:18,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:18,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 11:05:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:18,148 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:18,148 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:18,148 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:18,149 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:18,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:18,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:18,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:05:18,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:18,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:05:18,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:18,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:18,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:18,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:05:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:18,163 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:18,163 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:18,164 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:18,164 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:18,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:18,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:18,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:18,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:18,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:18,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:18,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:18,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:18,178 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 11:05:18,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1317483036] [2020-09-21 11:05:18,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:05:18,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:05:18,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833059143] [2020-09-21 11:05:18,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:05:18,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:05:18,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:05:18,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:05:18,182 INFO L87 Difference]: Start difference. First operand 195 states and 222 transitions. Second operand 8 states. [2020-09-21 11:05:18,604 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:05:19,810 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:05:20,129 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:05:20,420 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:05:20,693 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:05:21,080 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:05:22,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:05:22,193 INFO L93 Difference]: Finished difference Result 580 states and 716 transitions. [2020-09-21 11:05:22,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:05:22,193 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-09-21 11:05:22,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:05:22,198 INFO L225 Difference]: With dead ends: 580 [2020-09-21 11:05:22,198 INFO L226 Difference]: Without dead ends: 409 [2020-09-21 11:05:22,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:05:22,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2020-09-21 11:05:22,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 345. [2020-09-21 11:05:22,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-09-21 11:05:22,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 394 transitions. [2020-09-21 11:05:22,277 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 394 transitions. Word has length 78 [2020-09-21 11:05:22,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:05:22,278 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 394 transitions. [2020-09-21 11:05:22,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:05:22,278 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 394 transitions. [2020-09-21 11:05:22,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-21 11:05:22,280 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:22,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:05:22,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:05:22,280 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:22,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:22,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1032148237, now seen corresponding path program 1 times [2020-09-21 11:05:22,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:22,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1515022478] [2020-09-21 11:05:22,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:22,790 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:22,791 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:22,791 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:22,791 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:22,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-09-21 11:05:22,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:22,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 466 [2020-09-21 11:05:22,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:22,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:05:22,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:22,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-21 11:05:22,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:23,085 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:05:23,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:05:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:23,151 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:23,151 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:23,152 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:23,152 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:23,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:23,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:23,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 11:05:23,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:23,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:23,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:23,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:05:23,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:23,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:05:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:23,186 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:23,186 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:23,186 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:23,187 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:23,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:23,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:23,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:23,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:23,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:23,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:23,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:23,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:23,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:05:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:23,193 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:23,193 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:23,193 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:23,193 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:23,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:23,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:23,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:23,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:23,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:23,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:23,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:23,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:23,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:05:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:23,198 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:23,198 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:23,198 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:23,198 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:23,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:23,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:23,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:23,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:23,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:23,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:23,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:23,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:23,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:05:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:23,203 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:23,203 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:23,203 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:23,204 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:23,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:23,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:23,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:23,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:23,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:23,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:23,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:23,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:23,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:05:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:23,216 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:23,217 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:23,217 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:23,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:23,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:23,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:23,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:23,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:23,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:23,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:23,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:23,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:23,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:05:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:23,234 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:23,234 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:23,234 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:23,234 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:23,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:05:23,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:23,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:23,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:23,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:23,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:23,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:05:23,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:23,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:23,245 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:23,245 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:23,245 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:23,246 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:23,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:05:23,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:23,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:23,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:23,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:23,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:23,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:05:23,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:23,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:23,264 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:23,264 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:23,264 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:23,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:23,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:05:23,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:23,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:23,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:23,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:23,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:23,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:05:23,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:23,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:05:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:23,270 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:23,270 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:23,270 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:23,270 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:23,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:05:23,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:23,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:23,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:23,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:23,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:23,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:23,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:23,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:05:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:23,276 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:23,276 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:23,277 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:23,277 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:23,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:23,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:23,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:23,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:23,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:23,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:23,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:23,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:23,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-21 11:05:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:23,282 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:23,283 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:23,283 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:23,283 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:23,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:23,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:23,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:23,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:23,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:23,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:23,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:23,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:23,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-21 11:05:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:23,291 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:23,291 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:23,291 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:23,291 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:23,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:23,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:23,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:05:23,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:23,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:05:23,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:23,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:23,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:23,318 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 11:05:23,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1515022478] [2020-09-21 11:05:23,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:05:23,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:05:23,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539708906] [2020-09-21 11:05:23,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:05:23,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:05:23,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:05:23,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:05:23,321 INFO L87 Difference]: Start difference. First operand 345 states and 394 transitions. Second operand 9 states. [2020-09-21 11:05:23,751 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:05:24,964 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:05:25,242 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:05:25,571 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:05:25,883 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:05:26,193 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:05:27,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:05:27,280 INFO L93 Difference]: Finished difference Result 448 states and 562 transitions. [2020-09-21 11:05:27,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 11:05:27,281 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-09-21 11:05:27,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:05:27,286 INFO L225 Difference]: With dead ends: 448 [2020-09-21 11:05:27,286 INFO L226 Difference]: Without dead ends: 445 [2020-09-21 11:05:27,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-09-21 11:05:27,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-09-21 11:05:27,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 345. [2020-09-21 11:05:27,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-09-21 11:05:27,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 393 transitions. [2020-09-21 11:05:27,359 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 393 transitions. Word has length 82 [2020-09-21 11:05:27,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:05:27,359 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 393 transitions. [2020-09-21 11:05:27,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:05:27,360 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 393 transitions. [2020-09-21 11:05:27,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:05:27,361 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:27,361 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:05:27,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:05:27,362 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:27,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:27,362 INFO L82 PathProgramCache]: Analyzing trace with hash 2065507240, now seen corresponding path program 1 times [2020-09-21 11:05:27,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:27,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [815386746] [2020-09-21 11:05:27,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,418 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,418 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,418 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,418 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 11:05:27,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:05:27,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:05:27,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-09-21 11:05:27,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:05:27,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:05:27,724 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:05:27,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:05:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,739 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,739 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:27,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:27,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:27,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:27,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:27,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:27,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:05:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,770 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,770 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,770 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,770 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:27,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:27,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:27,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:27,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:27,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:27,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:05:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,774 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,774 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,775 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,775 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:27,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:27,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:27,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:27,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:27,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:27,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:05:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,778 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,778 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,779 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:27,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:05:27,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:27,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:27,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:27,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:27,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:05:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,782 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,783 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,783 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:27,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:05:27,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:27,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:27,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:27,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:27,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:05:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,793 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,793 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,793 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,793 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:27,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:05:27,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:27,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:27,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:27,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:27,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:05:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,818 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,819 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,819 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,819 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:05:27,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:05:27,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:05:27,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:05:27,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:05:27,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:27,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,839 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:05:27,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:05:27,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:05:27,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:05:27,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:05:27,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:27,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,916 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,916 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,916 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,919 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:05:27,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:05:27,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:05:27,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:27,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:05:27,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:27,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:05:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,959 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,959 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,959 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,959 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:05:27,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:27,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:27,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:27,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:27,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:27,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:05:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,965 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,966 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,966 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,967 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:27,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:27,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:27,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:27,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:27,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:27,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:05:27,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,980 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,980 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,981 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,981 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:27,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:05:27,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:27,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:27,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:27,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:27,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:05:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,989 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,989 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,990 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,990 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:27,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:27,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:27,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:27,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:27,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:28,012 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 11:05:28,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [815386746] [2020-09-21 11:05:28,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:05:28,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:05:28,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366335436] [2020-09-21 11:05:28,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:05:28,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:05:28,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:05:28,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:05:28,020 INFO L87 Difference]: Start difference. First operand 345 states and 393 transitions. Second operand 9 states. [2020-09-21 11:05:29,503 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:05:29,792 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:05:30,101 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:05:30,400 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:05:31,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:05:31,479 INFO L93 Difference]: Finished difference Result 770 states and 946 transitions. [2020-09-21 11:05:31,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:05:31,480 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-09-21 11:05:31,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:05:31,484 INFO L225 Difference]: With dead ends: 770 [2020-09-21 11:05:31,485 INFO L226 Difference]: Without dead ends: 449 [2020-09-21 11:05:31,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:05:31,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2020-09-21 11:05:31,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 355. [2020-09-21 11:05:31,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-21 11:05:31,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 403 transitions. [2020-09-21 11:05:31,555 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 403 transitions. Word has length 83 [2020-09-21 11:05:31,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:05:31,556 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 403 transitions. [2020-09-21 11:05:31,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:05:31,556 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 403 transitions. [2020-09-21 11:05:31,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:05:31,557 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:31,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:05:31,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:05:31,558 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:31,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:31,558 INFO L82 PathProgramCache]: Analyzing trace with hash 2088139494, now seen corresponding path program 1 times [2020-09-21 11:05:31,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:31,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [15133480] [2020-09-21 11:05:31,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:31,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:05:31,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -54 [2020-09-21 11:05:31,605 FATAL L256 erpolLogProxyWrapper]: Difference in width: 54 [2020-09-21 11:05:31,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:31,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 11:05:31,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:31,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:05:31,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:31,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:05:31,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-21 11:05:31,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:31,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:31,870 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:05:31,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:05:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:31,878 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:31,878 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:31,879 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:31,879 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:31,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:31,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:31,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:31,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:31,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:31,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:31,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:31,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:31,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:05:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:31,906 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:31,906 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:31,906 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:31,907 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:31,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:31,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:31,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:31,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:31,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:31,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:31,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:31,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:31,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:05:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:31,910 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:31,910 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:31,910 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:31,911 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:31,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:31,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:31,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:05:31,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:31,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:31,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:31,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:31,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:31,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:05:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:31,914 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:31,914 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:31,915 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:31,915 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:31,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:31,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:31,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:05:31,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:31,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:31,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:31,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:31,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:31,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:05:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:31,919 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:31,919 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:31,919 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:31,919 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:31,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:31,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:31,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:05:31,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:31,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:31,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:31,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:31,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:31,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:05:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:31,938 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:31,938 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:31,938 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:31,938 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:31,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:31,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:31,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:31,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:31,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:31,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:31,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:31,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:31,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:05:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:31,962 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:31,962 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:31,962 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:31,963 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:31,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:05:31,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:31,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:05:31,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:31,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:05:31,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:05:31,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:31,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:31,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:31,975 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:31,976 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:31,976 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:31,976 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:31,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:05:31,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:31,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:05:31,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:31,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:05:31,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:05:31,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:31,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:31,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:31,987 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:31,987 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:31,988 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:31,988 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:31,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:05:31,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:31,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:05:31,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:31,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:05:31,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:05:31,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:31,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:32,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:05:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:32,012 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:32,012 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:32,013 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:32,013 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:32,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:05:32,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:32,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:05:32,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:32,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:05:32,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:32,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:32,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:32,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:05:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:32,028 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:32,029 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:32,029 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:32,030 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:32,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:32,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:32,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:32,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:32,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:32,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:32,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:32,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:32,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:05:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:32,037 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:32,037 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:32,038 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:32,038 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:32,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:32,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:32,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:32,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:32,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:32,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:32,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:32,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:32,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:05:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:32,043 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:32,043 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:32,044 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:32,044 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:32,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:32,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:32,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:32,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:32,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:32,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:32,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:32,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:32,063 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 11:05:32,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [15133480] [2020-09-21 11:05:32,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:05:32,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:05:32,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124253547] [2020-09-21 11:05:32,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:05:32,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:05:32,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:05:32,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:05:32,065 INFO L87 Difference]: Start difference. First operand 355 states and 403 transitions. Second operand 8 states. [2020-09-21 11:05:33,005 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:05:33,251 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:05:33,512 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:05:34,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:05:34,479 INFO L93 Difference]: Finished difference Result 794 states and 986 transitions. [2020-09-21 11:05:34,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:05:34,480 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-09-21 11:05:34,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:05:34,483 INFO L225 Difference]: With dead ends: 794 [2020-09-21 11:05:34,484 INFO L226 Difference]: Without dead ends: 463 [2020-09-21 11:05:34,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:05:34,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-09-21 11:05:34,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 363. [2020-09-21 11:05:34,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-09-21 11:05:34,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 411 transitions. [2020-09-21 11:05:34,567 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 411 transitions. Word has length 83 [2020-09-21 11:05:34,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:05:34,567 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 411 transitions. [2020-09-21 11:05:34,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:05:34,568 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 411 transitions. [2020-09-21 11:05:34,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:05:34,569 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:34,569 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:05:34,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:05:34,570 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:34,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:34,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1181335803, now seen corresponding path program 1 times [2020-09-21 11:05:34,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:34,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2086882219] [2020-09-21 11:05:34,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:34,829 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:34,830 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:34,830 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:34,830 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:34,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 11:05:34,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:34,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-21 11:05:34,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:05:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-21 11:05:34,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:35,097 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:05:35,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:05:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:35,153 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:35,154 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:35,154 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:35,154 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:35,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:35,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:35,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 11:05:35,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:35,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:35,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:35,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:05:35,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:35,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:05:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:35,185 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:35,186 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:35,186 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:35,186 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:35,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:35,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:35,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:35,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:35,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:35,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:35,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:35,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:35,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:05:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:35,191 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:35,191 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:35,191 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:35,191 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:35,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:35,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:35,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:35,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:35,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:35,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:35,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:35,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:35,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:05:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:35,196 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:35,196 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:35,196 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:35,196 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:35,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:35,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:35,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:35,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:35,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:35,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:35,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:35,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:35,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:05:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:35,201 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:35,201 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:35,201 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:35,202 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:35,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:35,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:35,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:35,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:35,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:35,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:35,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:35,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:35,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:05:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:35,218 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:35,218 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:35,219 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:35,219 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:35,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:35,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:35,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:35,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:35,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:35,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:35,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:35,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:35,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:05:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:35,235 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:35,235 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:35,236 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:35,236 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:35,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:05:35,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:35,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:35,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:35,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:35,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:05:35,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:05:35,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:35,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:35,256 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:35,257 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:35,257 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:35,257 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:35,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:05:35,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:35,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:35,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:35,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:35,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:35,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:05:35,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:35,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:35,274 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:35,274 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:35,274 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:35,275 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:35,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:05:35,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:35,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:35,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:35,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:35,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:35,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:05:35,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:35,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:05:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:35,289 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:35,289 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:35,290 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:35,290 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:35,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:05:35,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:35,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:35,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:35,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:35,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:35,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:05:35,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:35,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:05:35,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:35,304 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:35,304 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:35,304 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:35,305 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:35,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:35,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:35,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:35,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:35,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:35,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:35,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:35,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:35,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:05:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:35,310 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:35,310 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:35,311 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:35,311 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:35,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:35,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:35,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:05:35,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:35,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:35,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:35,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:35,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:35,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:05:35,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:35,315 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:35,315 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:35,315 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:35,315 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:35,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:35,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:35,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:05:35,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:35,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:35,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:35,327 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 11:05:35,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2086882219] [2020-09-21 11:05:35,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:05:35,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:05:35,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952106340] [2020-09-21 11:05:35,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:05:35,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:05:35,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:05:35,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:05:35,330 INFO L87 Difference]: Start difference. First operand 363 states and 411 transitions. Second operand 7 states. [2020-09-21 11:05:35,836 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:05:36,390 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:05:38,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:05:38,555 INFO L93 Difference]: Finished difference Result 1097 states and 1408 transitions. [2020-09-21 11:05:38,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-21 11:05:38,556 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-09-21 11:05:38,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:05:38,561 INFO L225 Difference]: With dead ends: 1097 [2020-09-21 11:05:38,562 INFO L226 Difference]: Without dead ends: 758 [2020-09-21 11:05:38,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:05:38,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2020-09-21 11:05:38,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 659. [2020-09-21 11:05:38,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2020-09-21 11:05:38,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 781 transitions. [2020-09-21 11:05:38,691 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 781 transitions. Word has length 83 [2020-09-21 11:05:38,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:05:38,692 INFO L479 AbstractCegarLoop]: Abstraction has 659 states and 781 transitions. [2020-09-21 11:05:38,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:05:38,693 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 781 transitions. [2020-09-21 11:05:38,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-21 11:05:38,697 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:38,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:05:38,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:05:38,705 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:38,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:38,706 INFO L82 PathProgramCache]: Analyzing trace with hash -765720469, now seen corresponding path program 1 times [2020-09-21 11:05:38,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:38,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2062151357] [2020-09-21 11:05:38,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:38,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:05:38,773 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:05:38,773 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:05:38,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:05:38,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:05:38 BoogieIcfgContainer [2020-09-21 11:05:38,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:05:38,831 INFO L168 Benchmark]: Toolchain (without parser) took 33108.80 ms. Allocated memory was 148.9 MB in the beginning and 598.2 MB in the end (delta: 449.3 MB). Free memory was 102.7 MB in the beginning and 195.9 MB in the end (delta: -93.2 MB). Peak memory consumption was 356.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:05:38,837 INFO L168 Benchmark]: CDTParser took 0.99 ms. Allocated memory is still 148.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:05:38,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.02 ms. Allocated memory was 148.9 MB in the beginning and 206.6 MB in the end (delta: 57.7 MB). Free memory was 102.1 MB in the beginning and 174.9 MB in the end (delta: -72.8 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-09-21 11:05:38,846 INFO L168 Benchmark]: Boogie Preprocessor took 95.23 ms. Allocated memory is still 206.6 MB. Free memory was 174.9 MB in the beginning and 170.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:05:38,847 INFO L168 Benchmark]: RCFGBuilder took 1166.97 ms. Allocated memory was 206.6 MB in the beginning and 234.4 MB in the end (delta: 27.8 MB). Free memory was 170.9 MB in the beginning and 190.5 MB in the end (delta: -19.6 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:05:38,848 INFO L168 Benchmark]: TraceAbstraction took 31125.89 ms. Allocated memory was 234.4 MB in the beginning and 598.2 MB in the end (delta: 363.9 MB). Free memory was 190.5 MB in the beginning and 195.9 MB in the end (delta: -5.4 MB). Peak memory consumption was 358.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:05:38,859 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.99 ms. Allocated memory is still 148.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 708.02 ms. Allocated memory was 148.9 MB in the beginning and 206.6 MB in the end (delta: 57.7 MB). Free memory was 102.1 MB in the beginning and 174.9 MB in the end (delta: -72.8 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.23 ms. Allocated memory is still 206.6 MB. Free memory was 174.9 MB in the beginning and 170.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1166.97 ms. Allocated memory was 206.6 MB in the beginning and 234.4 MB in the end (delta: 27.8 MB). Free memory was 170.9 MB in the beginning and 190.5 MB in the end (delta: -19.6 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31125.89 ms. Allocated memory was 234.4 MB in the beginning and 598.2 MB in the end (delta: 363.9 MB). Free memory was 190.5 MB in the beginning and 195.9 MB in the end (delta: -5.4 MB). Peak memory consumption was 358.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 950]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L69] int cleanupTimeShifts = 4; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L545] int pumpRunning = 0; [L546] int systemActive = 1; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; [L150] int retValue_acc ; [L151] int tmp ; [L155] FCALL select_helpers() [L156] FCALL select_features() [L157] CALL, EXPR valid_product() [L833] int retValue_acc ; [L836] retValue_acc = 1 [L837] return (retValue_acc); [L157] RET, EXPR valid_product() [L157] tmp = valid_product() [L159] COND TRUE \read(tmp) [L161] FCALL setup() [L162] CALL runTest() [L141] CALL test() [L743] int splverifierCounter ; [L744] int tmp ; [L745] int tmp___0 ; [L746] int tmp___1 ; [L747] int tmp___2 ; [L750] splverifierCounter = 0 [L752] COND TRUE 1 [L754] COND TRUE splverifierCounter < 4 [L760] tmp = __VERIFIER_nondet_int() [L762] COND TRUE \read(tmp) [L764] CALL waterRise() [L861] COND TRUE waterLevel < 2 [L862] waterLevel = waterLevel + 1 [L764] RET waterRise() [L770] tmp___0 = __VERIFIER_nondet_int() [L772] COND TRUE \read(tmp___0) [L774] CALL changeMethaneLevel() [L873] COND FALSE !(\read(methaneLevelCritical)) [L876] methaneLevelCritical = 1 [L774] RET changeMethaneLevel() [L780] tmp___2 = __VERIFIER_nondet_int() [L782] COND TRUE \read(tmp___2) [L795] CALL timeShift() [L552] COND FALSE !(\read(pumpRunning)) [L559] COND TRUE \read(systemActive) [L561] CALL processEnvironment() [L607] int tmp ; [L610] COND FALSE !(\read(pumpRunning)) [L625] CALL processEnvironment__wrappee__highWaterSensor() [L581] int tmp ; [L584] COND TRUE ! pumpRunning [L586] CALL, EXPR isHighWaterLevel() [L704] int retValue_acc ; [L705] int tmp ; [L706] int tmp___0 ; [L710] CALL, EXPR isHighWaterSensorDry() [L923] int retValue_acc ; [L926] COND FALSE !(waterLevel < 2) [L930] retValue_acc = 0 [L931] return (retValue_acc); [L710] RET, EXPR isHighWaterSensorDry() [L710] tmp = isHighWaterSensorDry() [L712] COND FALSE !(\read(tmp)) [L715] tmp___0 = 1 [L717] retValue_acc = tmp___0 [L718] return (retValue_acc); [L586] RET, EXPR isHighWaterLevel() [L586] tmp = isHighWaterLevel() [L588] COND TRUE \read(tmp) [L590] CALL activatePump() [L635] pumpRunning = 1 [L590] RET activatePump() [L625] RET processEnvironment__wrappee__highWaterSensor() [L561] RET processEnvironment() [L567] CALL __utac_acc__Specification1_spec__1() [L44] int tmp ; [L45] int tmp___0 ; [L49] CALL, EXPR isMethaneLevelCritical() [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] return (retValue_acc); [L49] RET, EXPR isMethaneLevelCritical() [L49] tmp = isMethaneLevelCritical() [L51] COND TRUE \read(tmp) [L53] CALL, EXPR isPumpRunning() [L659] int retValue_acc ; [L662] retValue_acc = pumpRunning [L663] return (retValue_acc); [L53] RET, EXPR isPumpRunning() [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) [L57] CALL __automaton_fail() [L950] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 235 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 23.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1044 SDtfs, 1689 SDslu, 813 SDs, 0 SdLazy, 4079 SolverSat, 994 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 303 GetRequests, 219 SyntacticMatches, 3 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 9.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=659occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 580 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 704 NumberOfCodeBlocks, 704 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 608 ConstructedInterpolants, 0 QuantifiedInterpolants, 186678 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...