/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --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_spec2_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:40:19,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:40:19,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:40:19,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:40:19,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:40:19,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:40:19,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:40:19,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:40:19,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:40:19,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:40:19,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:40:19,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:40:19,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:40:19,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:40:19,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:40:19,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:40:19,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:40:19,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:40:19,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:40:19,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:40:19,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:40:19,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:40:19,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:40:19,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:40:19,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:40:19,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:40:19,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:40:19,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:40:19,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:40:19,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:40:19,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:40:19,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:40:19,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:40:19,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:40:19,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:40:19,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:40:19,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:40:19,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:40:19,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:40:19,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:40:19,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:40:19,297 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 [2020-09-25 00:40:19,341 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:40:19,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:40:19,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:40:19,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:40:19,343 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:40:19,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:40:19,343 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:40:19,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:40:19,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:40:19,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:40:19,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:40:19,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:40:19,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:40:19,345 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:40:19,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:40:19,345 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:40:19,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:40:19,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:40:19,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:40:19,346 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:40:19,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:40:19,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:40:19,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:40:19,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:40:19,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:40:19,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:40:19,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:40:19,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:40:19,348 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:40:19,348 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:40:19,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:40:19,847 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:40:19,851 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:40:19,853 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:40:19,854 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:40:19,855 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2020-09-25 00:40:19,939 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8dc8a0b66/07efe961bd2244f9acdf2f4d4b25499a/FLAG652331132 [2020-09-25 00:40:20,536 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:40:20,537 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2020-09-25 00:40:20,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8dc8a0b66/07efe961bd2244f9acdf2f4d4b25499a/FLAG652331132 [2020-09-25 00:40:20,825 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8dc8a0b66/07efe961bd2244f9acdf2f4d4b25499a [2020-09-25 00:40:20,838 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:40:20,844 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:40:20,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:40:20,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:40:20,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:40:20,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:40:20" (1/1) ... [2020-09-25 00:40:20,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71155234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:20, skipping insertion in model container [2020-09-25 00:40:20,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:40:20" (1/1) ... [2020-09-25 00:40:20,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:40:20,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:40:21,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:40:21,339 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:40:21,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:40:21,569 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:40:21,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:21 WrapperNode [2020-09-25 00:40:21,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:40:21,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:40:21,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:40:21,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:40:21,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:21" (1/1) ... [2020-09-25 00:40:21,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:21" (1/1) ... [2020-09-25 00:40:21,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:21" (1/1) ... [2020-09-25 00:40:21,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:21" (1/1) ... [2020-09-25 00:40:21,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:21" (1/1) ... [2020-09-25 00:40:21,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:21" (1/1) ... [2020-09-25 00:40:21,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:21" (1/1) ... [2020-09-25 00:40:21,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:40:21,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:40:21,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:40:21,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:40:21,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:21" (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 [2020-09-25 00:40:21,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:40:21,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:40:21,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:40:21,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:40:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 00:40:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 00:40:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:40:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:40:21,767 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:40:21,768 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:40:21,768 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:40:21,768 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:40:21,769 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:40:21,769 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:40:21,769 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:40:21,770 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:40:21,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:40:21,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:40:21,770 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:40:21,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:40:21,772 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 00:40:21,772 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:40:21,772 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:40:21,773 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:40:21,774 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:40:21,775 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:40:21,775 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:40:21,775 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:40:21,775 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:40:21,775 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:40:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:40:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:40:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:40:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:40:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:40:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:40:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:40:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:40:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:40:21,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:40:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:40:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:40:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:40:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:40:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:40:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:40:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 00:40:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 00:40:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:40:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:40:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:40:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:40:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:40:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:40:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:40:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:40:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:40:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:40:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:40:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 00:40:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:40:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:40:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:40:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:40:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:40:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:40:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:40:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:40:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:40:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:40:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:40:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:40:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:40:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:40:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:40:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:40:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:40:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:40:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:40:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:40:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:40:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:40:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:40:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:40:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:40:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:40:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:40:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:40:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:40:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:40:21,784 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:40:21,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:40:21,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:40:21,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:40:23,101 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:40:23,101 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:40:23,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:40:23 BoogieIcfgContainer [2020-09-25 00:40:23,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:40:23,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:40:23,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:40:23,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:40:23,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:40:20" (1/3) ... [2020-09-25 00:40:23,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1c02e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:40:23, skipping insertion in model container [2020-09-25 00:40:23,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:40:21" (2/3) ... [2020-09-25 00:40:23,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1c02e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:40:23, skipping insertion in model container [2020-09-25 00:40:23,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:40:23" (3/3) ... [2020-09-25 00:40:23,121 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product38.cil.c [2020-09-25 00:40:23,137 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:40:23,150 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:40:23,176 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:40:23,211 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:40:23,211 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:40:23,211 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:40:23,212 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:40:23,212 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:40:23,212 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:40:23,212 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:40:23,212 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:40:23,247 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states. [2020-09-25 00:40:23,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 00:40:23,267 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:40:23,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:40:23,269 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:40:23,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:40:23,278 INFO L82 PathProgramCache]: Analyzing trace with hash 837157569, now seen corresponding path program 1 times [2020-09-25 00:40:23,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:40:23,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597993083] [2020-09-25 00:40:23,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:40:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:23,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:24,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:25,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:26,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:27,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:28,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:28,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 00:40:28,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:40:28,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 00:40:28,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:28,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:40:28,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-25 00:40:28,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:40:28,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 00:40:29,374 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:40:29,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:40:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:29,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:29,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:29,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:40:29,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:29,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 00:40:29,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:29,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:29,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:29,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:29,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:29,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:40:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:29,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:29,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:29,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:29,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:29,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:29,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:29,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:29,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:29,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:29,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:29,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:40:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:29,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:29,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:29,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:29,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:29,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:29,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:29,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:29,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:29,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:29,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:29,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:40:29,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:29,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:29,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:29,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:29,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:29,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:40:29,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:29,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:29,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:29,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:29,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:29,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:40:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:29,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:29,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:29,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:29,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:29,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:29,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:29,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:29,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:29,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:29,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:29,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:40:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:29,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:29,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:29,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:29,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:29,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:29,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:29,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:29,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:29,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:29,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:40:29,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 00:40:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:29,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:29,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:29,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:29,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:29,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:40:29,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:29,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:40:29,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:29,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:40:29,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:29,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 00:40:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:29,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:29,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:29,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:29,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:29,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:40:29,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:29,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:29,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:29,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:40:29,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:29,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:40:29,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597993083] [2020-09-25 00:40:29,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:40:29,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:40:29,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860015690] [2020-09-25 00:40:29,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:40:29,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:40:29,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:40:29,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:40:29,816 INFO L87 Difference]: Start difference. First operand 314 states. Second operand 9 states. [2020-09-25 00:40:30,549 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:40:31,932 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:32,271 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:40:32,638 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:32,990 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:40:33,329 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:34,092 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:40:34,434 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:34,814 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:40:35,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:40:35,880 INFO L93 Difference]: Finished difference Result 597 states and 734 transitions. [2020-09-25 00:40:35,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 00:40:35,883 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 00:40:35,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:40:35,904 INFO L225 Difference]: With dead ends: 597 [2020-09-25 00:40:35,905 INFO L226 Difference]: Without dead ends: 407 [2020-09-25 00:40:35,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 00:40:35,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-09-25 00:40:36,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 355. [2020-09-25 00:40:36,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-25 00:40:36,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 397 transitions. [2020-09-25 00:40:36,052 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 397 transitions. Word has length 148 [2020-09-25 00:40:36,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:40:36,053 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 397 transitions. [2020-09-25 00:40:36,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:40:36,054 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 397 transitions. [2020-09-25 00:40:36,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 00:40:36,058 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:40:36,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:40:36,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:40:36,059 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:40:36,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:40:36,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1241488879, now seen corresponding path program 1 times [2020-09-25 00:40:36,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:40:36,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1692907119] [2020-09-25 00:40:36,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:40:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:36,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:36,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:37,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:38,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:41,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:41,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-25 00:40:41,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:40:41,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-09-25 00:40:41,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:41,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:40:41,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-25 00:40:41,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:40:41,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:41,480 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:40:41,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:40:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:41,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:41,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:41,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:40:41,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:41,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 00:40:41,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:41,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:41,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:41,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:41,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:41,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:40:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:41,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:41,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:41,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:41,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:41,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:41,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:41,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:41,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:41,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:41,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:41,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:40:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:41,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:41,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:41,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:41,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:41,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:41,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:41,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:41,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:41,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:41,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:41,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:40:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:41,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:41,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:41,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:41,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:41,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:41,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:41,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:41,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 30 [2020-09-25 00:40:41,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:40:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:41,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:41,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:41,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:41,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:41,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:41,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:41,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:41,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:41,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:40:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:41,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:41,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:41,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:41,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:41,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:41,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:41,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:41,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:41,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:41,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:41,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 00:40:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:41,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:41,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:41,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:40:41,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:41,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 00:40:41,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:41,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:40:41,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:40:41,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:40:41,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:40:41,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:41,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:41,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:41,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:40:41,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:41,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 00:40:41,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:40:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:40:41,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:40:41,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:41,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:41,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:41,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:41,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:40:41,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:41,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 00:40:41,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:41,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:41,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:41,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:40:41,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:42,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:40:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:42,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:42,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:42,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:40:42,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:42,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:42,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:42,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:42,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:42,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:42,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:42,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:40:42,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:42,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:42,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:42,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:42,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:42,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:42,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:42,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:42,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:40:42,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:42,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:42,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 00:40:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:42,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:42,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:42,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:42,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:42,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:40:42,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:42,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:42,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:40:42,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:42,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:42,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 00:40:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:42,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:42,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:42,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:42,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:42,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:42,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:42,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:42,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:40:42,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:42,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:42,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:40:42,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1692907119] [2020-09-25 00:40:42,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:40:42,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 00:40:42,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499536205] [2020-09-25 00:40:42,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:40:42,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:40:42,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:40:42,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:40:42,095 INFO L87 Difference]: Start difference. First operand 355 states and 397 transitions. Second operand 10 states. [2020-09-25 00:40:43,612 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:40:43,969 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:40:44,316 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 00:40:44,662 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:40:44,996 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:40:45,305 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:40:46,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:40:46,206 INFO L93 Difference]: Finished difference Result 692 states and 841 transitions. [2020-09-25 00:40:46,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:40:46,207 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 187 [2020-09-25 00:40:46,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:40:46,213 INFO L225 Difference]: With dead ends: 692 [2020-09-25 00:40:46,213 INFO L226 Difference]: Without dead ends: 452 [2020-09-25 00:40:46,217 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:40:46,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2020-09-25 00:40:46,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 369. [2020-09-25 00:40:46,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-09-25 00:40:46,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 417 transitions. [2020-09-25 00:40:46,278 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 417 transitions. Word has length 187 [2020-09-25 00:40:46,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:40:46,279 INFO L479 AbstractCegarLoop]: Abstraction has 369 states and 417 transitions. [2020-09-25 00:40:46,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:40:46,279 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 417 transitions. [2020-09-25 00:40:46,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 00:40:46,282 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:40:46,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:40:46,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:40:46,282 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:40:46,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:40:46,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1116284495, now seen corresponding path program 1 times [2020-09-25 00:40:46,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:40:46,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753686907] [2020-09-25 00:40:46,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:40:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:46,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:46,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:47,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:48,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:51,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:51,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-25 00:40:51,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:40:51,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 00:40:51,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:51,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:51,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 00:40:51,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:40:51,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:51,634 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:40:51,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:40:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:51,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:51,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:51,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:40:51,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:51,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 00:40:51,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:51,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:51,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:51,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:51,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:51,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:40:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:51,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:51,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:51,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:51,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:51,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:51,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:51,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:51,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:51,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:51,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:51,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:40:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:51,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:51,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:51,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:51,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:51,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:51,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:51,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:51,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:51,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:51,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:51,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:40:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:51,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:51,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:51,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:51,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:51,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:40:51,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:51,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:51,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:51,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:51,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:51,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:40:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:51,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:51,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:51,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:40:51,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:51,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:51,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:51,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:51,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:51,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:51,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:51,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:40:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:51,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:51,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:51,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:51,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:51,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:40:51,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:51,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:51,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:51,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:51,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:51,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 00:40:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:51,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:51,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:51,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:40:51,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:51,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 00:40:51,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:51,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:51,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:40:51,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:40:51,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:51,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:51,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:52,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:52,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:40:52,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:52,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 00:40:52,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:52,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:52,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:40:52,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:40:52,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:52,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:40:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:52,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:52,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:52,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:40:52,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:52,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 00:40:52,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:52,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:40:52,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:40:52,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:40:52,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:52,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:40:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:52,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:52,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:52,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:40:52,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:52,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:40:52,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:52,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:40:52,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:40:52,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:40:52,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:52,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:40:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:52,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:52,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:52,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:40:52,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:52,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:52,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:52,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:52,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:40:52,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:52,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:40:52,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 00:40:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:52,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:52,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:52,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:52,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:52,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:40:52,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:52,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:52,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:40:52,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:52,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:52,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 00:40:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:52,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:52,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:40:52,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:40:52,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:40:52,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:40:52,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:40:52,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:40:52,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:40:52,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:40:52,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:40:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:40:52,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753686907] [2020-09-25 00:40:52,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:40:52,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:40:52,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022638478] [2020-09-25 00:40:52,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:40:52,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:40:52,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:40:52,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:40:52,299 INFO L87 Difference]: Start difference. First operand 369 states and 417 transitions. Second operand 9 states. [2020-09-25 00:40:53,669 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:40:53,992 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:40:54,333 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:40:54,700 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:40:55,042 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:40:56,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:40:56,063 INFO L93 Difference]: Finished difference Result 717 states and 889 transitions. [2020-09-25 00:40:56,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:40:56,064 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 187 [2020-09-25 00:40:56,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:40:56,070 INFO L225 Difference]: With dead ends: 717 [2020-09-25 00:40:56,070 INFO L226 Difference]: Without dead ends: 463 [2020-09-25 00:40:56,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:40:56,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-09-25 00:40:56,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 375. [2020-09-25 00:40:56,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-25 00:40:56,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 423 transitions. [2020-09-25 00:40:56,136 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 423 transitions. Word has length 187 [2020-09-25 00:40:56,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:40:56,137 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 423 transitions. [2020-09-25 00:40:56,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:40:56,137 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 423 transitions. [2020-09-25 00:40:56,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 00:40:56,140 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:40:56,140 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:40:56,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:40:56,141 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:40:56,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:40:56,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1806778636, now seen corresponding path program 1 times [2020-09-25 00:40:56,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:40:56,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [893121421] [2020-09-25 00:40:56,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:40:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:40:56,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:56,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:58,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:40:59,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:01,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:01,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-25 00:41:01,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:41:01,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 00:41:01,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:01,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:41:01,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 00:41:01,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:41:01,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:01,522 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:41:01,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:41:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:01,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:01,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:01,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:41:01,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:01,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 00:41:01,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:01,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:01,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:01,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:01,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:01,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:41:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:01,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:01,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:01,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:01,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:01,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:01,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:01,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:01,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:01,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:01,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:01,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:41:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:01,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:01,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:01,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:01,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:01,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:01,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:01,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:01,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:01,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:01,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:01,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:41:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:01,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:01,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:01,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:01,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:01,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:01,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:01,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:01,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:01,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:01,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:01,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:41:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:01,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:01,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:01,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:01,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:01,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:01,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:01,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:01,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:01,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:01,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:01,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:41:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:01,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:01,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:01,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:01,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:01,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:41:01,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:01,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:01,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:01,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:01,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:01,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 00:41:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:01,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:01,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:01,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:41:01,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:01,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 00:41:01,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:01,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:01,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-25 00:41:01,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:01,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:01,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:01,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:01,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:01,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:41:01,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:01,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:41:01,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:01,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:01,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:01,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:01,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:01,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:01,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:01,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:01,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:41:01,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:01,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:41:01,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:01,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:01,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:01,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:01,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:01,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:41:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:01,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:01,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:01,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:41:01,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:01,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:01,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:01,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:01,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:01,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:01,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:01,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:41:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:01,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:01,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:01,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:01,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:01,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:01,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:01,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:01,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:01,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:01,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:01,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 00:41:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:01,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:01,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:01,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:01,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:01,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:01,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:01,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:01,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:41:01,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:01,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:01,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 00:41:01,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:01,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:01,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:01,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:01,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:01,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:01,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:01,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:01,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:41:01,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:01,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:01,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:41:01,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [893121421] [2020-09-25 00:41:01,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:41:01,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 00:41:01,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285567839] [2020-09-25 00:41:01,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:41:01,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:41:01,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:41:01,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:41:01,962 INFO L87 Difference]: Start difference. First operand 375 states and 423 transitions. Second operand 6 states. [2020-09-25 00:41:02,901 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:04,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:41:04,155 INFO L93 Difference]: Finished difference Result 616 states and 716 transitions. [2020-09-25 00:41:04,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 00:41:04,155 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 187 [2020-09-25 00:41:04,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:41:04,159 INFO L225 Difference]: With dead ends: 616 [2020-09-25 00:41:04,159 INFO L226 Difference]: Without dead ends: 424 [2020-09-25 00:41:04,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:41:04,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-09-25 00:41:04,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 355. [2020-09-25 00:41:04,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-25 00:41:04,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 389 transitions. [2020-09-25 00:41:04,207 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 389 transitions. Word has length 187 [2020-09-25 00:41:04,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:41:04,207 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 389 transitions. [2020-09-25 00:41:04,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:41:04,208 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 389 transitions. [2020-09-25 00:41:04,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 00:41:04,210 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:41:04,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:41:04,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:41:04,211 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:41:04,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:41:04,212 INFO L82 PathProgramCache]: Analyzing trace with hash 562800399, now seen corresponding path program 1 times [2020-09-25 00:41:04,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:41:04,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1742162040] [2020-09-25 00:41:04,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:41:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:04,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:04,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:05,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking...