/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_spec4_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:12:48,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:12:48,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:12:48,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:12:48,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:12:48,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:12:48,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:12:48,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:12:48,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:12:48,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:12:48,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:12:48,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:12:48,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:12:48,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:12:48,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:12:48,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:12:48,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:12:48,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:12:48,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:12:48,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:12:48,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:12:48,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:12:48,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:12:48,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:12:48,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:12:48,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:12:48,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:12:48,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:12:48,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:12:48,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:12:48,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:12:48,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:12:48,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:12:48,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:12:48,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:12:48,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:12:48,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:12:48,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:12:48,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:12:48,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:12:48,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:12:48,244 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 11:12:48,284 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:12:48,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:12:48,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:12:48,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:12:48,286 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:12:48,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:12:48,287 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:12:48,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:12:48,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:12:48,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:12:48,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:12:48,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:12:48,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:12:48,288 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:12:48,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:12:48,288 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:12:48,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:12:48,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:12:48,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:12:48,289 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:12:48,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:12:48,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:12:48,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:12:48,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:12:48,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:12:48,290 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:12:48,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:12:48,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:12:48,291 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:12:48,291 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 11:12:48,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:12:48,734 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:12:48,740 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:12:48,742 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:12:48,742 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:12:48,743 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c [2020-09-21 11:12:48,816 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8421f1885/6b9dd3c493c14ee09cd783259088a72c/FLAGafc24ae5c [2020-09-21 11:12:49,411 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:12:49,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c [2020-09-21 11:12:49,437 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8421f1885/6b9dd3c493c14ee09cd783259088a72c/FLAGafc24ae5c [2020-09-21 11:12:49,663 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8421f1885/6b9dd3c493c14ee09cd783259088a72c [2020-09-21 11:12:49,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:12:49,681 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:12:49,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:12:49,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:12:49,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:12:49,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:12:49" (1/1) ... [2020-09-21 11:12:49,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:49, skipping insertion in model container [2020-09-21 11:12:49,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:12:49" (1/1) ... [2020-09-21 11:12:49,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:12:49,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:12:50,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:12:50,269 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:12:50,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:12:50,379 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:12:50,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:50 WrapperNode [2020-09-21 11:12:50,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:12:50,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:12:50,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:12:50,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:12:50,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:50" (1/1) ... [2020-09-21 11:12:50,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:50" (1/1) ... [2020-09-21 11:12:50,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:50" (1/1) ... [2020-09-21 11:12:50,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:50" (1/1) ... [2020-09-21 11:12:50,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:50" (1/1) ... [2020-09-21 11:12:50,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:50" (1/1) ... [2020-09-21 11:12:50,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:50" (1/1) ... [2020-09-21 11:12:50,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:12:50,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:12:50,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:12:50,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:12:50,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:50" (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 11:12:50,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:12:50,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:12:50,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:12:50,556 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:12:50,556 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:12:50,556 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:12:50,557 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:12:50,557 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:12:50,557 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:12:50,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:12:50,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:12:50,558 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:12:50,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:12:50,559 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 11:12:50,559 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 11:12:50,560 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:12:50,560 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:12:50,560 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:12:50,560 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:12:50,561 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:12:50,561 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:12:50,562 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:12:50,562 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:12:50,562 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:12:50,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:12:50,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:12:50,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:12:50,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:12:50,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:12:50,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:12:50,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:12:50,565 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:12:50,565 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:12:50,566 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:12:50,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:12:50,566 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:12:50,566 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:12:50,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:12:50,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:12:50,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:12:50,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:12:50,567 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:12:50,567 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:12:50,567 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:12:50,567 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 11:12:50,567 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 11:12:50,567 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:12:50,568 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:12:50,568 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:12:50,568 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:12:50,568 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:12:50,568 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:12:50,568 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:12:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:12:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:12:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:12:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:12:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:12:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:12:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:12:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:12:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:12:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:12:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:12:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:12:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:12:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:12:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:12:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:12:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:12:50,571 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:12:50,571 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:12:50,571 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:12:50,571 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:12:50,571 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:12:50,571 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:12:50,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:12:50,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:12:50,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:12:50,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:12:50,572 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:12:50,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:12:50,572 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:12:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:12:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:12:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:12:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:12:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:12:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:12:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:12:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:12:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:12:51,638 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:12:51,639 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:12:51,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:12:51 BoogieIcfgContainer [2020-09-21 11:12:51,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:12:51,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:12:51,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:12:51,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:12:51,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:12:49" (1/3) ... [2020-09-21 11:12:51,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70fbe98a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:12:51, skipping insertion in model container [2020-09-21 11:12:51,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:50" (2/3) ... [2020-09-21 11:12:51,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70fbe98a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:12:51, skipping insertion in model container [2020-09-21 11:12:51,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:12:51" (3/3) ... [2020-09-21 11:12:51,659 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2020-09-21 11:12:51,671 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:12:51,681 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:12:51,702 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:12:51,728 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:12:51,728 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:12:51,728 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:12:51,728 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:12:51,729 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:12:51,729 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:12:51,729 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:12:51,729 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:12:51,755 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states. [2020-09-21 11:12:51,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 11:12:51,767 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:51,769 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 11:12:51,769 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:51,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:51,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1806854140, now seen corresponding path program 1 times [2020-09-21 11:12:51,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:51,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498677838] [2020-09-21 11:12:51,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,082 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,086 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,086 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-21 11:12:52,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:12:52,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:52,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:12:52,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:52,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:52,569 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:52,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,605 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,605 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:52,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:52,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:52,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:52,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,711 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,711 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,713 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,714 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:52,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:12:52,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:52,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:52,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:52,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:52,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,728 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,728 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,728 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,729 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:52,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:52,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:52,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:52,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:52,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,738 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,738 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:52,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:52,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:52,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:52,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:52,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:52,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,746 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,746 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:52,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:52,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:52,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:52,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:52,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:52,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:12:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,754 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,754 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,755 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,755 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:52,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:52,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:52,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:52,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:52,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:52,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:12:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,764 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,765 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,765 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,765 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:52,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:52,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:52,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:52,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:52,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:52,782 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 11:12:52,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498677838] [2020-09-21 11:12:52,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:52,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:12:52,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009047485] [2020-09-21 11:12:52,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:12:52,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:52,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:12:52,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:12:52,817 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 3 states. [2020-09-21 11:12:53,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:12:53,898 INFO L93 Difference]: Finished difference Result 278 states and 364 transitions. [2020-09-21 11:12:53,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:12:53,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 11:12:53,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:12:53,918 INFO L225 Difference]: With dead ends: 278 [2020-09-21 11:12:53,918 INFO L226 Difference]: Without dead ends: 151 [2020-09-21 11:12:53,924 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 11:12:53,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-09-21 11:12:54,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 118. [2020-09-21 11:12:54,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-09-21 11:12:54,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 137 transitions. [2020-09-21 11:12:54,016 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 137 transitions. Word has length 46 [2020-09-21 11:12:54,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:12:54,016 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 137 transitions. [2020-09-21 11:12:54,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:12:54,017 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 137 transitions. [2020-09-21 11:12:54,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 11:12:54,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:54,021 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 11:12:54,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:12:54,021 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:54,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:54,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1793827304, now seen corresponding path program 1 times [2020-09-21 11:12:54,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:54,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1005568207] [2020-09-21 11:12:54,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,082 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,082 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,083 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,083 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:12:54,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:12:54,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:54,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:12:54,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:12:54,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:54,373 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:54,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,383 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,383 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,383 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,383 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:54,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:54,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:54,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:54,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:54,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:54,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,419 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,419 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,420 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,420 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:54,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:54,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:54,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:54,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:54,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:54,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,424 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,425 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,425 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,425 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:54,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:54,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:54,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:54,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:54,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:54,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,430 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,430 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,430 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:54,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:54,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:54,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:54,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:54,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:54,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,435 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,435 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,435 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,436 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:54,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:54,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:54,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:54,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:12:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,440 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,440 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,440 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,441 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:54,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:54,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:54,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:54,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:54,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:54,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:12:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,446 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,446 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,446 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,446 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:54,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:54,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:54,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:54,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:54,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:54,454 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 11:12:54,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1005568207] [2020-09-21 11:12:54,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:54,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:12:54,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290296926] [2020-09-21 11:12:54,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:12:54,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:54,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:12:54,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:12:54,458 INFO L87 Difference]: Start difference. First operand 118 states and 137 transitions. Second operand 4 states. [2020-09-21 11:12:54,871 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:12:55,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:12:55,617 INFO L93 Difference]: Finished difference Result 198 states and 241 transitions. [2020-09-21 11:12:55,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:12:55,625 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 11:12:55,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:12:55,628 INFO L225 Difference]: With dead ends: 198 [2020-09-21 11:12:55,628 INFO L226 Difference]: Without dead ends: 135 [2020-09-21 11:12:55,630 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 11:12:55,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-21 11:12:55,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 109. [2020-09-21 11:12:55,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-21 11:12:55,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 125 transitions. [2020-09-21 11:12:55,666 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 125 transitions. Word has length 47 [2020-09-21 11:12:55,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:12:55,666 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 125 transitions. [2020-09-21 11:12:55,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:12:55,667 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 125 transitions. [2020-09-21 11:12:55,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:12:55,669 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:55,669 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:12:55,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:12:55,670 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:55,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:55,670 INFO L82 PathProgramCache]: Analyzing trace with hash 25908157, now seen corresponding path program 1 times [2020-09-21 11:12:55,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:55,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307209364] [2020-09-21 11:12:55,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:55,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,045 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:12:56,045 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,045 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,046 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 11:12:56,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-09-21 11:12:56,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:12:56,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:56,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 11:12:56,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,388 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:56,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,502 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,502 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,503 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,503 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:56,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-21 11:12:56,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:56,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:12:56,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,561 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,561 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,561 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,561 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:56,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:56,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:56,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,567 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,567 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,567 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,567 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:56,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:56,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:56,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,573 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,573 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,573 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,574 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:56,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:56,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:12:56,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,583 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,583 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,583 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,583 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:56,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:56,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:56,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 11:12:56,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:12:56,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,591 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,591 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,591 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:56,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:12:56,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:56,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:56,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:56,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:12:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,596 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,596 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,597 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,597 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:56,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:56,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:56,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:56,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,609 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 11:12:56,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307209364] [2020-09-21 11:12:56,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:56,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:12:56,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584667286] [2020-09-21 11:12:56,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:12:56,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:56,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:12:56,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:12:56,612 INFO L87 Difference]: Start difference. First operand 109 states and 125 transitions. Second operand 4 states. [2020-09-21 11:12:56,944 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:12:58,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:12:58,351 INFO L93 Difference]: Finished difference Result 315 states and 385 transitions. [2020-09-21 11:12:58,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:12:58,351 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-09-21 11:12:58,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:12:58,356 INFO L225 Difference]: With dead ends: 315 [2020-09-21 11:12:58,356 INFO L226 Difference]: Without dead ends: 230 [2020-09-21 11:12:58,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 1 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 11:12:58,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-09-21 11:12:58,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 178. [2020-09-21 11:12:58,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-09-21 11:12:58,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 209 transitions. [2020-09-21 11:12:58,412 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 209 transitions. Word has length 52 [2020-09-21 11:12:58,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:12:58,413 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 209 transitions. [2020-09-21 11:12:58,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:12:58,413 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 209 transitions. [2020-09-21 11:12:58,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:12:58,415 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:58,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:12:58,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:12:58,416 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:58,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:58,416 INFO L82 PathProgramCache]: Analyzing trace with hash -388118307, now seen corresponding path program 1 times [2020-09-21 11:12:58,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:58,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834300856] [2020-09-21 11:12:58,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,867 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:12:58,867 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,867 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,868 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:12:58,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 403 [2020-09-21 11:12:58,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:12:58,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:58,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:12:58,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:59,313 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:59,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:59,410 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:59,411 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:59,411 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:59,411 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:59,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:59,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:59,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 11:12:59,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:59,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:59,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:59,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:12:59,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:59,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:59,474 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:59,474 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:59,475 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:59,475 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:59,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:59,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:59,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:59,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:59,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:59,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:59,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:59,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:59,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:59,484 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:59,485 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:59,485 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:59,485 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:59,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:59,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:59,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:59,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:59,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:59,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:59,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:59,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:59,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:59,492 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:59,493 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:59,493 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:59,494 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:59,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:59,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:59,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:59,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:59,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:59,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:59,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:12:59,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:59,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:59,503 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:59,503 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:59,503 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:59,504 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:59,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:59,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:59,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:59,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:59,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:59,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:12:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:59,530 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:59,530 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:59,531 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:59,531 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:59,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:12:59,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:59,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:59,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:59,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:59,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:59,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:12:59,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:12:59,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:12:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:59,545 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:59,545 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:59,545 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:59,546 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:59,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:59,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:59,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:12:59,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:59,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:12:59,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:59,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:12:59,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:59,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:12:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:59,570 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:59,571 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:59,571 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:59,571 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:59,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:59,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:59,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:59,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:59,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:59,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:59,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:59,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:59,586 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 11:12:59,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834300856] [2020-09-21 11:12:59,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:59,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:12:59,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188035639] [2020-09-21 11:12:59,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:12:59,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:59,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:12:59,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:12:59,591 INFO L87 Difference]: Start difference. First operand 178 states and 209 transitions. Second operand 8 states. [2020-09-21 11:13:00,187 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:01,325 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:01,699 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:02,008 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:02,362 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:03,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:03,250 INFO L93 Difference]: Finished difference Result 545 states and 712 transitions. [2020-09-21 11:13:03,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:03,251 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-09-21 11:13:03,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:03,256 INFO L225 Difference]: With dead ends: 545 [2020-09-21 11:13:03,257 INFO L226 Difference]: Without dead ends: 391 [2020-09-21 11:13:03,259 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:13:03,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-09-21 11:13:03,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 331. [2020-09-21 11:13:03,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-09-21 11:13:03,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 397 transitions. [2020-09-21 11:13:03,348 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 397 transitions. Word has length 57 [2020-09-21 11:13:03,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:03,349 INFO L479 AbstractCegarLoop]: Abstraction has 331 states and 397 transitions. [2020-09-21 11:13:03,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:13:03,349 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 397 transitions. [2020-09-21 11:13:03,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-21 11:13:03,352 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:03,352 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] [2020-09-21 11:13:03,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:13:03,353 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:03,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:03,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1713773635, now seen corresponding path program 1 times [2020-09-21 11:13:03,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:03,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962706638] [2020-09-21 11:13:03,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,742 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,742 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,743 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,743 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-21 11:13:03,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-09-21 11:13:03,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:13:03,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:03,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:13:03,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:04,092 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:04,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:04,154 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:04,154 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:04,155 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:04,155 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:04,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:04,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:04,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 11:13:04,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:04,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:04,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:04,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:04,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:04,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:04,192 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:04,193 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:04,193 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:04,193 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:04,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:04,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:04,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:04,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:04,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:04,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:04,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:04,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:04,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:04,198 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:04,198 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:04,198 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:04,199 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:04,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:04,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:04,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:04,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:04,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:04,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:04,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:04,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:04,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:04,203 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:04,204 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:04,204 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:04,204 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:04,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:04,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:04,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:04,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:04,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:04,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:04,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:04,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:04,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:04,212 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:04,213 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:04,213 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:04,213 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:04,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:04,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:04,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:04,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:04,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:04,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:04,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:04,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:04,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:13:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:04,232 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:04,232 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:04,233 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:04,233 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:04,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:04,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:04,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:04,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:04,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:04,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:04,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:04,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:04,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:13:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:04,248 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:04,248 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:04,248 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:04,248 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:04,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:04,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:04,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:04,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:04,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:04,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:04,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:04,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:04,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:13:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:04,253 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:04,253 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:04,254 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:04,254 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:04,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:04,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:04,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:04,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:04,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:04,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:13:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:04,258 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:04,259 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:04,259 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:04,259 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:04,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:04,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:04,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:04,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:04,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:04,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:04,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:04,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:04,270 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 11:13:04,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [962706638] [2020-09-21 11:13:04,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:04,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:13:04,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595613435] [2020-09-21 11:13:04,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:13:04,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:04,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:13:04,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:13:04,272 INFO L87 Difference]: Start difference. First operand 331 states and 397 transitions. Second operand 6 states. [2020-09-21 11:13:04,668 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:06,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:06,491 INFO L93 Difference]: Finished difference Result 869 states and 1117 transitions. [2020-09-21 11:13:06,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:06,492 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-09-21 11:13:06,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:06,497 INFO L225 Difference]: With dead ends: 869 [2020-09-21 11:13:06,497 INFO L226 Difference]: Without dead ends: 562 [2020-09-21 11:13:06,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:13:06,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2020-09-21 11:13:06,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 509. [2020-09-21 11:13:06,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 509 states. [2020-09-21 11:13:06,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 620 transitions. [2020-09-21 11:13:06,599 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 620 transitions. Word has length 61 [2020-09-21 11:13:06,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:06,599 INFO L479 AbstractCegarLoop]: Abstraction has 509 states and 620 transitions. [2020-09-21 11:13:06,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:13:06,600 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 620 transitions. [2020-09-21 11:13:06,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-21 11:13:06,601 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:06,602 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] [2020-09-21 11:13:06,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:13:06,602 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:06,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:06,602 INFO L82 PathProgramCache]: Analyzing trace with hash 852833187, now seen corresponding path program 1 times [2020-09-21 11:13:06,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:06,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804994373] [2020-09-21 11:13:06,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:07,054 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:07,055 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:07,055 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:07,055 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:07,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-21 11:13:07,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:07,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 409 [2020-09-21 11:13:07,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:07,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 11:13:07,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:07,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-21 11:13:07,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:07,486 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:07,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:07,552 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:07,553 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:07,553 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:07,553 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:07,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:07,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:07,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:13:07,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:07,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:07,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:07,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:07,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:07,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:07,594 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:07,595 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:07,595 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:07,595 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:07,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:07,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:07,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:07,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:07,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:07,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:07,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:07,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:07,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:07,603 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:07,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:07,604 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:07,604 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:07,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:07,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:07,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:07,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:07,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:07,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:07,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:07,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:07,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:07,612 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:07,612 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:07,613 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:07,613 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:07,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:07,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:07,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:07,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:07,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:07,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:07,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:07,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:07,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:07,621 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:07,621 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:07,621 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:07,622 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:07,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:07,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:07,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:07,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:07,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:07,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:07,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:07,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:07,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:07,651 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:07,651 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:07,652 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:07,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:07,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:07,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:07,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:07,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:07,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:07,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:07,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:07,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:07,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:13:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:07,738 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:07,738 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:07,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:07,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:07,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:07,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:07,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:07,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:07,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:07,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:07,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:07,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:07,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:13:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:07,751 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:07,751 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:07,752 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:07,752 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:07,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:07,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:07,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:07,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:07,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:07,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:07,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:07,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:07,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:13:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:07,778 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:07,778 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:07,779 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:07,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:07,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:07,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:07,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:07,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:07,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:07,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:07,805 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 11:13:07,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804994373] [2020-09-21 11:13:07,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:07,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-21 11:13:07,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816303563] [2020-09-21 11:13:07,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:13:07,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:07,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:13:07,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:13:07,809 INFO L87 Difference]: Start difference. First operand 509 states and 620 transitions. Second operand 11 states. [2020-09-21 11:13:08,459 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:09,199 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:09,921 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:10,399 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:10,837 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:11,132 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:12,830 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 187 [2020-09-21 11:13:13,175 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:14,681 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-21 11:13:15,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:15,508 INFO L93 Difference]: Finished difference Result 1465 states and 1880 transitions. [2020-09-21 11:13:15,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-21 11:13:15,509 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 61 [2020-09-21 11:13:15,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:15,518 INFO L225 Difference]: With dead ends: 1465 [2020-09-21 11:13:15,518 INFO L226 Difference]: Without dead ends: 1177 [2020-09-21 11:13:15,520 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=193, Invalid=677, Unknown=0, NotChecked=0, Total=870 [2020-09-21 11:13:15,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2020-09-21 11:13:15,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1085. [2020-09-21 11:13:15,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1085 states. [2020-09-21 11:13:15,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1303 transitions. [2020-09-21 11:13:15,746 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1303 transitions. Word has length 61 [2020-09-21 11:13:15,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:15,747 INFO L479 AbstractCegarLoop]: Abstraction has 1085 states and 1303 transitions. [2020-09-21 11:13:15,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:13:15,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1303 transitions. [2020-09-21 11:13:15,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-09-21 11:13:15,751 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:15,752 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:15,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:13:15,752 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:15,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:15,753 INFO L82 PathProgramCache]: Analyzing trace with hash -2042706554, now seen corresponding path program 1 times [2020-09-21 11:13:15,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:15,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330796998] [2020-09-21 11:13:15,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,802 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,802 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,803 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,803 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-21 11:13:15,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-21 11:13:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:15,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:16,078 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:16,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:16,088 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:16,088 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:16,089 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:16,089 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:16,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:16,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:16,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:16,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:16,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:16,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:16,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:16,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:16,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:16,115 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:16,115 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:16,115 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:16,116 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:16,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:16,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:16,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:16,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:16,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:16,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:16,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:16,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:16,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:16,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:16,119 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:16,119 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:16,120 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:16,120 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:16,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:16,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:16,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:16,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:16,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:16,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:16,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:16,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:16,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:16,124 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:16,124 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:16,124 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:16,124 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:16,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:16,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:16,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:16,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:16,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:16,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:16,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:16,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:16,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:16,128 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:16,128 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:16,128 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:16,129 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:16,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:16,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:16,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:16,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:16,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:16,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:16,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:16,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:16,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:13:16,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:16,149 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:16,150 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:16,150 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:16,150 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:16,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:16,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:16,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:16,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:16,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:16,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:16,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:16,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:16,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:13:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:16,172 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:16,173 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:16,173 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:16,173 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:16,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:13:16,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:16,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:16,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:16,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:16,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:13:16,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:16,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:16,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:16,202 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:16,202 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:16,202 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:16,202 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:16,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:13:16,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:16,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:16,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:16,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:13:16,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:16,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:16,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:16,214 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:16,214 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:16,214 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:16,215 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:16,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:16,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:16,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:16,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:16,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:16,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:13:16,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:16,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:16,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:16,242 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:16,242 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:16,242 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:16,243 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:16,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:16,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:16,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:16,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:16,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:13:16,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:16,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:16,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:16,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:16,260 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:16,261 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:16,261 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:16,261 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:16,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:16,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:16,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:16,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:16,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:16,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 11:13:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:16,266 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:16,267 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:16,267 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:16,267 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:16,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:13:16,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:16,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:16,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:16,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:16,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:13:16,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:16,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:16,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:16,272 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:16,272 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:16,272 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:16,272 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:16,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:16,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:16,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:16,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:16,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:16,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:16,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:16,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:16,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-21 11:13:16,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:16,290 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:16,291 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:16,291 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:16,291 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:16,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:16,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:16,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:16,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:16,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:16,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:16,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:16,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:16,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-21 11:13:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:16,296 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:16,296 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:16,296 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:16,296 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:16,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:16,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:16,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:16,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:16,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:16,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:16,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:16,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-21 11:13:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:16,301 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:16,302 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:16,302 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:16,302 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:16,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:16,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:16,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:16,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:16,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:16,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:16,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:16,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:16,319 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:13:16,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330796998] [2020-09-21 11:13:16,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:16,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-21 11:13:16,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529029125] [2020-09-21 11:13:16,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:13:16,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:16,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:13:16,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:13:16,322 INFO L87 Difference]: Start difference. First operand 1085 states and 1303 transitions. Second operand 11 states. [2020-09-21 11:13:17,441 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:17,820 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:18,144 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:18,453 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:20,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:20,094 INFO L93 Difference]: Finished difference Result 1957 states and 2447 transitions. [2020-09-21 11:13:20,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 11:13:20,095 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 108 [2020-09-21 11:13:20,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:20,102 INFO L225 Difference]: With dead ends: 1957 [2020-09-21 11:13:20,102 INFO L226 Difference]: Without dead ends: 896 [2020-09-21 11:13:20,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2020-09-21 11:13:20,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2020-09-21 11:13:20,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 766. [2020-09-21 11:13:20,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 766 states. [2020-09-21 11:13:20,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 897 transitions. [2020-09-21 11:13:20,293 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 897 transitions. Word has length 108 [2020-09-21 11:13:20,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:20,293 INFO L479 AbstractCegarLoop]: Abstraction has 766 states and 897 transitions. [2020-09-21 11:13:20,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:13:20,294 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 897 transitions. [2020-09-21 11:13:20,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-21 11:13:20,296 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:20,297 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:20,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:13:20,297 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:20,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:20,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1698160131, now seen corresponding path program 1 times [2020-09-21 11:13:20,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:20,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498066956] [2020-09-21 11:13:20,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,356 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,357 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,357 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,357 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-09-21 11:13:20,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:20,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:20,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-21 11:13:20,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:20,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,663 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:20,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,672 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,672 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,673 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,673 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:20,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:20,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,700 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,700 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,701 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,701 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:20,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:20,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:20,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,705 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,706 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,706 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,706 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:20,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:20,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:20,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,710 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,711 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,711 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,711 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:20,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:20,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,717 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,717 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,717 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,717 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:20,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:20,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:13:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,739 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,739 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,740 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:13:20,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:20,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:20,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:13:20,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:20,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:20,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,772 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,778 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,779 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:13:20,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 11:13:20,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:20,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:13:20,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:20,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,828 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,829 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,829 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,829 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:20,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:20,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:20,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:20,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:13:20,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,867 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,867 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,867 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,868 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:20,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:20,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,876 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,876 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,876 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,877 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:20,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:20,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 11:13:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,883 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,883 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,883 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,883 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:13:20,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:13:20,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,891 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,891 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:20,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:20,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 11:13:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,911 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,911 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,911 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,912 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:20,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:20,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-21 11:13:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,917 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,917 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,918 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,918 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:20,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:13:20,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,926 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,926 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,927 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,927 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:20,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:20,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:20,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-09-21 11:13:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,931 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,931 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,932 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,932 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:20,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:20,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-21 11:13:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,937 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,938 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,938 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,938 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:20,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:20,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,955 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 11:13:20,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498066956] [2020-09-21 11:13:20,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:13:20,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:13:20,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875568909] [2020-09-21 11:13:20,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:13:20,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:20,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:13:20,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:13:20,960 INFO L87 Difference]: Start difference. First operand 766 states and 897 transitions. Second operand 10 states. [2020-09-21 11:13:22,070 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:22,389 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:13:22,724 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:23,022 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:13:23,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:23,836 INFO L93 Difference]: Finished difference Result 1508 states and 1808 transitions. [2020-09-21 11:13:23,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:13:23,837 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 111 [2020-09-21 11:13:23,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:23,844 INFO L225 Difference]: With dead ends: 1508 [2020-09-21 11:13:23,844 INFO L226 Difference]: Without dead ends: 766 [2020-09-21 11:13:23,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 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 11:13:23,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2020-09-21 11:13:23,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 709. [2020-09-21 11:13:23,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2020-09-21 11:13:23,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 821 transitions. [2020-09-21 11:13:23,984 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 821 transitions. Word has length 111 [2020-09-21 11:13:23,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:23,984 INFO L479 AbstractCegarLoop]: Abstraction has 709 states and 821 transitions. [2020-09-21 11:13:23,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:13:23,985 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 821 transitions. [2020-09-21 11:13:23,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-09-21 11:13:23,987 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:23,987 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:23,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:13:23,987 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:23,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:23,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1415201690, now seen corresponding path program 1 times [2020-09-21 11:13:23,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:23,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519141231] [2020-09-21 11:13:23,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,064 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,064 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,065 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,065 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-21 11:13:24,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:13:24,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:13:24,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-21 11:13:24,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 11:13:24,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,374 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:24,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,382 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,382 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,382 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,382 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:24,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:24,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:24,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,410 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,410 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,410 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,411 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:24,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:24,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:24,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,414 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,414 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,414 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,414 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:24,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:24,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:24,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:24,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,418 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,418 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,418 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,418 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:24,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:24,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:24,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:24,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,422 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,422 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,422 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,422 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:24,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:24,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:24,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:24,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,439 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,439 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,439 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,439 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:24,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:24,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:24,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:24,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:13:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,466 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,466 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,466 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,466 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:13:24,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:24,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:13:24,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,492 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,492 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,492 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,493 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:13:24,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:24,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:24,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:13:24,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,506 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,506 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,506 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,506 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:24,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:24,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:24,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:13:24,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,518 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,518 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,518 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,519 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:24,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:24,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:24,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,528 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,529 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,529 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,529 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:24,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:24,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:24,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 11:13:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,536 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,536 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,536 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,537 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:13:24,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:24,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:13:24,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,543 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,544 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,544 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,544 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:24,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:24,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:24,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-21 11:13:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,558 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,559 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,559 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:24,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:13:24,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:24,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:24,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:24,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 11:13:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,588 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,588 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,588 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,589 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:24,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:24,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:13:24,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,595 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,595 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,595 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,595 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:24,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:24,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:24,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:24,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 11:13:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,603 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,603 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,603 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,603 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:24,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:24,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:24,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:24,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:24,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-21 11:13:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:24,624 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:24,624 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:24,624 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:24,624 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:24,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:24,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:24,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:24,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:24,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:24,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:24,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:24,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 11:13:24,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519141231] [2020-09-21 11:13:24,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:13:24,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 11:13:24,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731776114] [2020-09-21 11:13:24,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:13:24,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:24,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:13:24,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:24,646 INFO L87 Difference]: Start difference. First operand 709 states and 821 transitions. Second operand 12 states. [2020-09-21 11:13:25,108 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:25,839 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:26,452 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:26,818 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:27,153 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:27,506 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:27,911 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:28,221 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:29,506 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:30,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:30,371 INFO L93 Difference]: Finished difference Result 1696 states and 2112 transitions. [2020-09-21 11:13:30,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-21 11:13:30,372 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 115 [2020-09-21 11:13:30,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:30,381 INFO L225 Difference]: With dead ends: 1696 [2020-09-21 11:13:30,381 INFO L226 Difference]: Without dead ends: 1098 [2020-09-21 11:13:30,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=240, Invalid=572, Unknown=0, NotChecked=0, Total=812 [2020-09-21 11:13:30,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2020-09-21 11:13:30,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1012. [2020-09-21 11:13:30,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1012 states. [2020-09-21 11:13:30,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1196 transitions. [2020-09-21 11:13:30,579 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1196 transitions. Word has length 115 [2020-09-21 11:13:30,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:30,580 INFO L479 AbstractCegarLoop]: Abstraction has 1012 states and 1196 transitions. [2020-09-21 11:13:30,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:13:30,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1196 transitions. [2020-09-21 11:13:30,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-21 11:13:30,583 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:30,583 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:30,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:13:30,583 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:30,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:30,584 INFO L82 PathProgramCache]: Analyzing trace with hash 59332245, now seen corresponding path program 2 times [2020-09-21 11:13:30,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:30,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [279417379] [2020-09-21 11:13:30,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:13:30,665 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:13:30,666 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:13:30,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:13:30,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:13:30 BoogieIcfgContainer [2020-09-21 11:13:30,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:13:30,732 INFO L168 Benchmark]: Toolchain (without parser) took 41049.60 ms. Allocated memory was 140.0 MB in the beginning and 753.9 MB in the end (delta: 613.9 MB). Free memory was 100.4 MB in the beginning and 330.3 MB in the end (delta: -229.9 MB). Peak memory consumption was 384.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:30,733 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:13:30,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 697.97 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 99.8 MB in the beginning and 173.0 MB in the end (delta: -73.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:30,740 INFO L168 Benchmark]: Boogie Preprocessor took 99.39 ms. Allocated memory is still 203.4 MB. Free memory was 173.0 MB in the beginning and 168.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:30,741 INFO L168 Benchmark]: RCFGBuilder took 1168.24 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 168.4 MB in the beginning and 200.6 MB in the end (delta: -32.3 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:30,744 INFO L168 Benchmark]: TraceAbstraction took 39075.34 ms. Allocated memory was 237.0 MB in the beginning and 753.9 MB in the end (delta: 516.9 MB). Free memory was 200.6 MB in the beginning and 330.3 MB in the end (delta: -129.7 MB). Peak memory consumption was 387.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:30,749 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 697.97 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 99.8 MB in the beginning and 173.0 MB in the end (delta: -73.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.39 ms. Allocated memory is still 203.4 MB. Free memory was 173.0 MB in the beginning and 168.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1168.24 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 168.4 MB in the beginning and 200.6 MB in the end (delta: -32.3 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 39075.34 ms. Allocated memory was 237.0 MB in the beginning and 753.9 MB in the end (delta: 516.9 MB). Free memory was 200.6 MB in the beginning and 330.3 MB in the end (delta: -129.7 MB). Peak memory consumption was 387.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 437]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L123] int pumpRunning = 0; [L124] int systemActive = 1; [L299] int cleanupTimeShifts = 4; [L611] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L809] int waterLevel = 1; [L810] int methaneLevelCritical = 0; [L375] int retValue_acc ; [L376] int tmp ; [L380] FCALL select_helpers() [L381] FCALL select_features() [L382] CALL, EXPR valid_product() [L424] int retValue_acc ; [L427] retValue_acc = 1 [L428] return (retValue_acc); [L382] RET, EXPR valid_product() [L382] tmp = valid_product() [L384] COND TRUE \read(tmp) [L386] FCALL setup() [L387] CALL runTest() [L366] CALL test() [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 [L56] COND TRUE 1 [L58] COND TRUE splverifierCounter < 4 [L64] tmp = __VERIFIER_nondet_int() [L66] COND TRUE \read(tmp) [L68] CALL waterRise() [L827] COND TRUE waterLevel < 2 [L828] waterLevel = waterLevel + 1 [L68] RET waterRise() [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND FALSE !(\read(tmp___1)) [L103] CALL timeShift() [L131] COND FALSE !(\read(pumpRunning)) [L138] COND TRUE \read(systemActive) [L140] CALL processEnvironment() [L160] int tmp ; [L163] COND TRUE ! pumpRunning [L165] CALL, EXPR isHighWaterLevel() [L257] int retValue_acc ; [L258] int tmp ; [L259] int tmp___0 ; [L263] CALL, EXPR isHighWaterSensorDry() [L889] int retValue_acc ; [L892] COND FALSE !(waterLevel < 2) [L896] retValue_acc = 0 [L897] return (retValue_acc); [L263] RET, EXPR isHighWaterSensorDry() [L263] tmp = isHighWaterSensorDry() [L265] COND FALSE !(\read(tmp)) [L268] tmp___0 = 1 [L270] retValue_acc = tmp___0 [L271] return (retValue_acc); [L165] RET, EXPR isHighWaterLevel() [L165] tmp = isHighWaterLevel() [L167] COND TRUE \read(tmp) [L169] CALL activatePump() [L188] pumpRunning = 1 [L169] RET activatePump() [L140] RET processEnvironment() [L146] CALL __utac_acc__Specification4_spec__1() [L904] int tmp ; [L905] int tmp___0 ; [L909] CALL, EXPR getWaterLevel() [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); [L909] RET, EXPR getWaterLevel() [L909] tmp = getWaterLevel() [L911] COND FALSE !(tmp == 0) [L146] RET __utac_acc__Specification4_spec__1() [L103] RET timeShift() [L56] COND TRUE 1 [L58] COND TRUE splverifierCounter < 4 [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND FALSE !(\read(tmp___1)) [L103] CALL timeShift() [L131] COND TRUE \read(pumpRunning) [L133] CALL lowerWaterLevel() [L815] COND TRUE waterLevel > 0 [L816] waterLevel = waterLevel - 1 [L133] RET lowerWaterLevel() [L138] COND TRUE \read(systemActive) [L140] CALL processEnvironment() [L160] int tmp ; [L163] COND FALSE !(! pumpRunning) [L178] FCALL processEnvironment__wrappee__base() [L140] RET processEnvironment() [L146] CALL __utac_acc__Specification4_spec__1() [L904] int tmp ; [L905] int tmp___0 ; [L909] CALL, EXPR getWaterLevel() [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); [L909] RET, EXPR getWaterLevel() [L909] tmp = getWaterLevel() [L911] COND FALSE !(tmp == 0) [L146] RET __utac_acc__Specification4_spec__1() [L103] RET timeShift() [L56] COND TRUE 1 [L58] COND TRUE splverifierCounter < 4 [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND FALSE !(\read(tmp___1)) [L103] CALL timeShift() [L131] COND TRUE \read(pumpRunning) [L133] CALL lowerWaterLevel() [L815] COND TRUE waterLevel > 0 [L816] waterLevel = waterLevel - 1 [L133] RET lowerWaterLevel() [L138] COND TRUE \read(systemActive) [L140] CALL processEnvironment() [L160] int tmp ; [L163] COND FALSE !(! pumpRunning) [L178] FCALL processEnvironment__wrappee__base() [L140] RET processEnvironment() [L146] CALL __utac_acc__Specification4_spec__1() [L904] int tmp ; [L905] int tmp___0 ; [L909] CALL, EXPR getWaterLevel() [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); [L909] RET, EXPR getWaterLevel() [L909] tmp = getWaterLevel() [L911] COND TRUE tmp == 0 [L913] CALL, EXPR isPumpRunning() [L212] int retValue_acc ; [L215] retValue_acc = pumpRunning [L216] return (retValue_acc); [L913] RET, EXPR isPumpRunning() [L913] tmp___0 = isPumpRunning() [L915] COND TRUE \read(tmp___0) [L917] CALL __automaton_fail() [L437] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 225 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 38.9s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 30.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1084 SDtfs, 2246 SDslu, 1290 SDs, 0 SdLazy, 5723 SolverSat, 1612 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 344 GetRequests, 225 SyntacticMatches, 5 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 13.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1085occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 589 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 809 NumberOfCodeBlocks, 809 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 649 ConstructedInterpolants, 0 QuantifiedInterpolants, 208411 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 64/70 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...