/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:08:20,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:08:20,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:08:20,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:08:20,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:08:20,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:08:20,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:08:20,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:08:20,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:08:20,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:08:20,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:08:20,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:08:20,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:08:20,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:08:20,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:08:20,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:08:20,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:08:20,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:08:20,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:08:20,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:08:20,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:08:20,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:08:20,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:08:20,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:08:20,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:08:20,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:08:20,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:08:20,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:08:20,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:08:20,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:08:20,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:08:20,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:08:20,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:08:20,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:08:20,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:08:20,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:08:20,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:08:20,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:08:20,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:08:20,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:08:20,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:08:20,313 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 11:08:20,338 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:08:20,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:08:20,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:08:20,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:08:20,340 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:08:20,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:08:20,341 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:08:20,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:08:20,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:08:20,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:08:20,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:08:20,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:08:20,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:08:20,342 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:08:20,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:08:20,343 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:08:20,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:08:20,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:08:20,343 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:08:20,344 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:08:20,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:08:20,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:08:20,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:08:20,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:08:20,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:08:20,345 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:08:20,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:08:20,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:08:20,345 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:08:20,346 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:08:20,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:08:20,830 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:08:20,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:08:20,838 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:08:20,839 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:08:20,841 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2020-09-21 11:08:20,939 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2658ffef7/b80c14eb52d34719ad56a2cfffc4153b/FLAGaee457c79 [2020-09-21 11:08:21,574 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:08:21,575 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2020-09-21 11:08:21,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2658ffef7/b80c14eb52d34719ad56a2cfffc4153b/FLAGaee457c79 [2020-09-21 11:08:21,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2658ffef7/b80c14eb52d34719ad56a2cfffc4153b [2020-09-21 11:08:21,842 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:08:21,847 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:08:21,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:08:21,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:08:21,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:08:21,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:08:21" (1/1) ... [2020-09-21 11:08:21,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:08:21, skipping insertion in model container [2020-09-21 11:08:21,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:08:21" (1/1) ... [2020-09-21 11:08:21,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:08:21,949 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:08:22,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:08:22,381 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:08:22,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:08:22,691 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:08:22,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:08:22 WrapperNode [2020-09-21 11:08:22,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:08:22,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:08:22,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:08:22,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:08:22,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:08:22" (1/1) ... [2020-09-21 11:08:22,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:08:22" (1/1) ... [2020-09-21 11:08:22,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:08:22" (1/1) ... [2020-09-21 11:08:22,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:08:22" (1/1) ... [2020-09-21 11:08:22,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:08:22" (1/1) ... [2020-09-21 11:08:22,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:08:22" (1/1) ... [2020-09-21 11:08:22,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:08:22" (1/1) ... [2020-09-21 11:08:22,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:08:22,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:08:22,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:08:22,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:08:22,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:08:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:08:22,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:08:22,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:08:22,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:08:22,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:08:22,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:08:22,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:08:22,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:08:22,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:08:22,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:08:22,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:08:22,916 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:08:22,917 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:08:22,917 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:08:22,917 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:08:22,917 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:08:22,918 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:08:22,918 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:08:22,919 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 11:08:22,919 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:08:22,919 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-21 11:08:22,919 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:08:22,919 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:08:22,920 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:08:22,920 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:08:22,920 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:08:22,921 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:08:22,921 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:08:22,921 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:08:22,922 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:08:22,922 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:08:22,922 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:08:22,922 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:08:22,922 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:08:22,923 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:08:22,923 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:08:22,923 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:08:22,923 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:08:22,923 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:08:22,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-21 11:08:22,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-21 11:08:22,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:08:22,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:08:22,924 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:08:22,925 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:08:22,925 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:08:22,926 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:08:22,926 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:08:22,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:08:22,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:08:22,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:08:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:08:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:08:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:08:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:08:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:08:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:08:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:08:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:08:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:08:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:08:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:08:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:08:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:08:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:08:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:08:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:08:22,931 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:08:22,931 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:08:22,931 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-21 11:08:22,931 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:08:22,931 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:08:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:08:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:08:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:08:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:08:22,934 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:08:22,934 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:08:22,934 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:08:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:08:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:08:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:08:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:08:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-21 11:08:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:08:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:08:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:08:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 11:08:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:08:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-21 11:08:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:08:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:08:22,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:08:22,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:08:22,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:08:24,109 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:08:24,109 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:08:24,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:08:24 BoogieIcfgContainer [2020-09-21 11:08:24,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:08:24,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:08:24,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:08:24,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:08:24,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:08:21" (1/3) ... [2020-09-21 11:08:24,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b12eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:08:24, skipping insertion in model container [2020-09-21 11:08:24,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:08:22" (2/3) ... [2020-09-21 11:08:24,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b12eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:08:24, skipping insertion in model container [2020-09-21 11:08:24,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:08:24" (3/3) ... [2020-09-21 11:08:24,129 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product45.cil.c [2020-09-21 11:08:24,139 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:08:24,148 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:08:24,167 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:08:24,197 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:08:24,197 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:08:24,197 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:08:24,197 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:08:24,198 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:08:24,198 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:08:24,198 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:08:24,198 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:08:24,225 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-09-21 11:08:24,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 11:08:24,238 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:08:24,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:08:24,240 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:08:24,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:08:24,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1016037874, now seen corresponding path program 1 times [2020-09-21 11:08:24,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:08:24,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167430659] [2020-09-21 11:08:24,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:08:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:24,601 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:24,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:24,604 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:24,604 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:24,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 11:08:24,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:24,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:08:24,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:24,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:24,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-09-21 11:08:24,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:24,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:25,078 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:08:25,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:08:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:25,118 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:25,119 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:25,119 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:25,119 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:25,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:25,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:25,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:08:25,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:25,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:25,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:25,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:25,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 11:08:25,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:08:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:25,231 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:25,231 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:25,232 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:25,232 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:25,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:25,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:25,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:25,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:25,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:25,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:25,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:25,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:25,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:08:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:25,238 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:25,238 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:25,238 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:25,239 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:25,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:25,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:25,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:25,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:25,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:25,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:25,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:25,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:25,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:25,245 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:25,245 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:25,246 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:25,246 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:25,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:25,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:25,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:25,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:25,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:25,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:25,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:25,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:25,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:08:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:25,253 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:25,254 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:25,254 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:25,254 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:25,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:25,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:25,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:25,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:25,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:25,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:25,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:25,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:25,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:08:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:25,271 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:25,271 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:25,271 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:25,272 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:25,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:25,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:25,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:25,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:25,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:25,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:25,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:25,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:25,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:08:25,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:25,282 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:25,283 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:25,283 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:25,283 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:25,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:25,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:25,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:25,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:25,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:25,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:25,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:25,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:25,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 11:08:25,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:25,291 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:25,292 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:25,292 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:25,292 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:25,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:25,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:25,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:25,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:25,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:25,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:25,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:25,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:25,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:08:25,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167430659] [2020-09-21 11:08:25,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:08:25,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:08:25,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811538860] [2020-09-21 11:08:25,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:08:25,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:08:25,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:08:25,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:08:25,360 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 4 states. [2020-09-21 11:08:26,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:08:26,635 INFO L93 Difference]: Finished difference Result 302 states and 395 transitions. [2020-09-21 11:08:26,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 11:08:26,637 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 11:08:26,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:08:26,655 INFO L225 Difference]: With dead ends: 302 [2020-09-21 11:08:26,656 INFO L226 Difference]: Without dead ends: 168 [2020-09-21 11:08:26,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:08:26,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-09-21 11:08:26,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 135. [2020-09-21 11:08:26,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-09-21 11:08:26,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 160 transitions. [2020-09-21 11:08:26,767 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 160 transitions. Word has length 51 [2020-09-21 11:08:26,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:08:26,767 INFO L479 AbstractCegarLoop]: Abstraction has 135 states and 160 transitions. [2020-09-21 11:08:26,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:08:26,768 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 160 transitions. [2020-09-21 11:08:26,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:08:26,772 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:08:26,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:08:26,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:08:26,773 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:08:26,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:08:26,773 INFO L82 PathProgramCache]: Analyzing trace with hash 2062541652, now seen corresponding path program 1 times [2020-09-21 11:08:26,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:08:26,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1232294615] [2020-09-21 11:08:26,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:08:26,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:26,877 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:26,878 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:26,878 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:26,878 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:26,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:08:26,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:26,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:08:26,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:26,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:26,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-21 11:08:26,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:08:26,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:27,255 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:08:27,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:08:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:27,267 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:27,267 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:27,267 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:27,268 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:27,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:27,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:27,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:27,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:27,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:27,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:27,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:27,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:27,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:08:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:27,311 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:27,311 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:27,312 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:27,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:27,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:27,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:27,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:27,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:27,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:27,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:27,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:27,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:27,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:08:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:27,316 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:27,317 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:27,317 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:27,317 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:27,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:27,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:27,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:27,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:27,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:27,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:27,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:27,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:27,322 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:27,322 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:27,322 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:27,322 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:27,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:27,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:27,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:27,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:27,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:27,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:27,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:27,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:27,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:08:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:27,328 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:27,328 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:27,328 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:27,328 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:27,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:27,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:27,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:27,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:27,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:27,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:08:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:27,346 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:27,346 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:27,347 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:27,347 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:27,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:27,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:27,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:27,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:27,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:27,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:27,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:27,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:27,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:08:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:27,352 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:27,352 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:27,352 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:27,353 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:27,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:27,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:27,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:27,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:27,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:27,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:27,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:27,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:27,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:08:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:27,358 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:27,359 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:27,359 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:27,359 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:27,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:27,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:27,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:27,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:27,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:27,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:27,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:27,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:27,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:08:27,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1232294615] [2020-09-21 11:08:27,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:08:27,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:08:27,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098545705] [2020-09-21 11:08:27,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:08:27,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:08:27,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:08:27,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:08:27,374 INFO L87 Difference]: Start difference. First operand 135 states and 160 transitions. Second operand 5 states. [2020-09-21 11:08:27,867 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:08:28,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:08:28,879 INFO L93 Difference]: Finished difference Result 247 states and 306 transitions. [2020-09-21 11:08:28,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:08:28,880 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-09-21 11:08:28,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:08:28,884 INFO L225 Difference]: With dead ends: 247 [2020-09-21 11:08:28,884 INFO L226 Difference]: Without dead ends: 158 [2020-09-21 11:08:28,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:08:28,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-09-21 11:08:28,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 126. [2020-09-21 11:08:28,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-21 11:08:28,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 148 transitions. [2020-09-21 11:08:28,946 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 148 transitions. Word has length 52 [2020-09-21 11:08:28,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:08:28,947 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 148 transitions. [2020-09-21 11:08:28,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:08:28,947 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 148 transitions. [2020-09-21 11:08:28,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-21 11:08:28,949 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:08:28,950 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] [2020-09-21 11:08:28,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:08:28,950 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:08:28,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:08:28,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1086390402, now seen corresponding path program 1 times [2020-09-21 11:08:28,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:08:28,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [610395107] [2020-09-21 11:08:28,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:08:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:29,073 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:08:29,074 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:29,074 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:29,074 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:29,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-21 11:08:29,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:29,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-21 11:08:29,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-21 11:08:29,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:29,385 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:08:29,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:08:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:29,456 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:29,456 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:29,457 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:29,457 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:29,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:29,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:29,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 11:08:29,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:29,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:29,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:29,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:08:29,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:29,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:08:29,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:29,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:29,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:29,495 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:29,495 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:29,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:29,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:29,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:29,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:29,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:29,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:29,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:29,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:29,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:08:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:29,500 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:29,501 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:29,501 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:29,501 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:29,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:29,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:29,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:29,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:29,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:29,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:29,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:29,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:29,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:29,506 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:29,507 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:29,507 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:29,507 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:29,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:29,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:29,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:29,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:29,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:29,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:29,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:29,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:29,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:08:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:29,513 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:29,513 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:29,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:29,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:29,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:29,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:29,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:29,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:29,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:29,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:29,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:29,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:29,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:08:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:29,528 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:29,529 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:29,529 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:29,529 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:29,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:29,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:29,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:29,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:29,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:29,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:29,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:29,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:29,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:08:29,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:29,534 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:29,534 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:29,534 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:29,535 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:29,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:29,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:29,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:29,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:29,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:29,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:29,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:29,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:29,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:08:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:29,539 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:29,540 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:29,540 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:29,540 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:29,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:29,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:29,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:29,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:29,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:29,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:08:29,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [610395107] [2020-09-21 11:08:29,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:08:29,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:08:29,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037779620] [2020-09-21 11:08:29,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:08:29,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:08:29,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:08:29,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:08:29,553 INFO L87 Difference]: Start difference. First operand 126 states and 148 transitions. Second operand 5 states. [2020-09-21 11:08:29,905 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:08:30,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:08:30,990 INFO L93 Difference]: Finished difference Result 256 states and 321 transitions. [2020-09-21 11:08:30,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 11:08:30,991 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2020-09-21 11:08:30,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:08:30,995 INFO L225 Difference]: With dead ends: 256 [2020-09-21 11:08:30,995 INFO L226 Difference]: Without dead ends: 158 [2020-09-21 11:08:30,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:08:30,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-09-21 11:08:31,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 126. [2020-09-21 11:08:31,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-21 11:08:31,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 147 transitions. [2020-09-21 11:08:31,035 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 147 transitions. Word has length 56 [2020-09-21 11:08:31,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:08:31,035 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 147 transitions. [2020-09-21 11:08:31,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:08:31,035 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 147 transitions. [2020-09-21 11:08:31,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-21 11:08:31,038 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:08:31,038 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:08:31,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:08:31,039 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:08:31,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:08:31,039 INFO L82 PathProgramCache]: Analyzing trace with hash -848651131, now seen corresponding path program 1 times [2020-09-21 11:08:31,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:08:31,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [842187076] [2020-09-21 11:08:31,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:08:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:31,467 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:31,467 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:31,467 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:31,468 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:31,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:08:31,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:31,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 377 [2020-09-21 11:08:31,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:31,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 11:08:31,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:31,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-21 11:08:31,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:31,785 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:08:31,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:08:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:31,844 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:31,844 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:31,844 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:31,844 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:31,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:31,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:31,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 11:08:31,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:31,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:31,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:31,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:08:31,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:31,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:08:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:31,880 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:31,880 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:31,881 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:31,881 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:31,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:31,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:31,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:31,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:31,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:31,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:31,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:31,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:31,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:08:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:31,885 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:31,886 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:31,886 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:31,886 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:31,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:31,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:31,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:31,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:31,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:31,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:31,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:31,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:31,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:31,891 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:31,891 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:31,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:31,892 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:31,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:31,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:31,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:31,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:31,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:31,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:31,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:31,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:31,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:08:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:31,897 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:31,897 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:31,897 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:31,898 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:31,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:31,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:31,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:31,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:31,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:31,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:31,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:31,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:31,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:08:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:31,911 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:31,912 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:31,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:31,912 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:31,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:31,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:31,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:31,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:31,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:31,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:31,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:31,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:31,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:08:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:31,934 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:31,934 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:31,934 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:31,935 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:31,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:08:31,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:31,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:08:31,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:31,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:08:31,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 11:08:31,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:08:31,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:31,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:31,948 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:31,949 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:31,949 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:31,949 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:31,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:08:31,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:31,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:08:31,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:31,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:08:31,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:08:31,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:08:31,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:31,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:31,965 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:31,965 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:31,965 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:31,965 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:31,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:31,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:31,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:31,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:31,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:31,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:31,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:31,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:31,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-09-21 11:08:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:31,970 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:31,971 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:31,971 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:31,971 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:31,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:31,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:31,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:31,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:31,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:31,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:31,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:31,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:31,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-21 11:08:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:31,975 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:31,976 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:31,976 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:31,976 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:31,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:31,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:31,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:31,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:31,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:31,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:31,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:31,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:31,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:08:31,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [842187076] [2020-09-21 11:08:31,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:08:31,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:08:31,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601333436] [2020-09-21 11:08:31,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:08:31,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:08:31,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:08:31,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:08:31,991 INFO L87 Difference]: Start difference. First operand 126 states and 147 transitions. Second operand 7 states. [2020-09-21 11:08:32,379 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:08:33,739 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:08:34,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:08:34,658 INFO L93 Difference]: Finished difference Result 355 states and 448 transitions. [2020-09-21 11:08:34,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 11:08:34,659 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-21 11:08:34,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:08:34,663 INFO L225 Difference]: With dead ends: 355 [2020-09-21 11:08:34,663 INFO L226 Difference]: Without dead ends: 257 [2020-09-21 11:08:34,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-09-21 11:08:34,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-09-21 11:08:34,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 211. [2020-09-21 11:08:34,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-09-21 11:08:34,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 243 transitions. [2020-09-21 11:08:34,719 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 243 transitions. Word has length 69 [2020-09-21 11:08:34,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:08:34,719 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 243 transitions. [2020-09-21 11:08:34,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:08:34,720 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 243 transitions. [2020-09-21 11:08:34,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:08:34,722 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:08:34,723 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:08:34,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:08:34,723 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:08:34,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:08:34,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1442987939, now seen corresponding path program 1 times [2020-09-21 11:08:34,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:08:34,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639936923] [2020-09-21 11:08:34,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:08:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:35,073 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:35,073 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:35,073 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:35,074 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:35,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 11:08:35,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:35,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-09-21 11:08:35,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:35,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:08:35,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:35,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-21 11:08:35,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:35,401 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:08:35,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:08:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:35,463 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:35,463 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:35,463 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:35,464 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:35,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:35,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:35,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 11:08:35,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:35,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:35,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:35,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:08:35,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:35,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:08:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:35,505 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:35,505 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:35,505 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:35,506 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:35,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:35,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:35,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:08:35,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:35,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:35,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:35,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:35,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:35,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:08:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:35,513 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:35,513 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:35,513 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:35,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:35,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:35,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:35,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:08:35,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:35,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:35,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:35,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:35,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:35,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:35,522 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:35,523 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:35,523 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:35,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:35,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:35,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:35,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:08:35,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:35,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:35,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:35,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:35,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:35,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:08:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:35,532 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:35,533 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:35,533 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:35,533 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:35,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:35,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:35,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:08:35,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:35,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:35,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:35,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:35,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:35,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:08:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:35,558 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:35,558 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:35,559 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:35,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:35,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:35,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:35,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:08:35,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:35,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:35,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:35,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:35,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:35,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:08:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:35,581 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:35,582 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:35,582 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:35,582 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:35,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:08:35,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:35,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:08:35,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:35,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:35,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:35,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-21 11:08:35,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:35,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:35,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:35,597 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:35,597 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:35,598 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:35,598 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:35,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:08:35,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:35,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:35,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:35,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:35,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:35,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:35,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:35,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:35,609 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:35,609 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:35,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:35,610 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:35,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:08:35,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:35,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:35,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:35,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:35,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:35,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:35,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:35,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:35,617 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:35,618 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:35,618 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:35,619 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:35,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:08:35,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:35,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:35,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:35,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:35,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:35,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:35,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:35,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:08:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:35,626 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:35,626 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:35,626 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:35,627 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:35,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:35,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:35,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:35,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:35,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:35,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:35,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:35,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:35,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-21 11:08:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:35,641 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:35,642 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:35,642 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:35,642 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:35,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:35,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:35,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:08:35,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:35,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:08:35,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:35,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:35,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:35,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-21 11:08:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:35,672 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:35,673 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:35,673 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:35,673 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:35,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:35,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:35,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:35,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:35,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:35,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:35,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:35,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:35,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:08:35,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639936923] [2020-09-21 11:08:35,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:08:35,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:08:35,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009798930] [2020-09-21 11:08:35,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:08:35,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:08:35,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:08:35,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:08:35,709 INFO L87 Difference]: Start difference. First operand 211 states and 243 transitions. Second operand 9 states. [2020-09-21 11:08:36,322 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:08:37,471 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:08:37,917 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:08:38,642 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:08:38,950 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:08:40,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:08:40,351 INFO L93 Difference]: Finished difference Result 624 states and 785 transitions. [2020-09-21 11:08:40,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 11:08:40,352 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-09-21 11:08:40,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:08:40,357 INFO L225 Difference]: With dead ends: 624 [2020-09-21 11:08:40,358 INFO L226 Difference]: Without dead ends: 441 [2020-09-21 11:08:40,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-09-21 11:08:40,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-09-21 11:08:40,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 370. [2020-09-21 11:08:40,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-09-21 11:08:40,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 426 transitions. [2020-09-21 11:08:40,451 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 426 transitions. Word has length 83 [2020-09-21 11:08:40,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:08:40,452 INFO L479 AbstractCegarLoop]: Abstraction has 370 states and 426 transitions. [2020-09-21 11:08:40,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:08:40,452 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 426 transitions. [2020-09-21 11:08:40,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-21 11:08:40,454 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:08:40,454 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:08:40,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:08:40,455 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:08:40,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:08:40,455 INFO L82 PathProgramCache]: Analyzing trace with hash -142547263, now seen corresponding path program 1 times [2020-09-21 11:08:40,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:08:40,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1982142636] [2020-09-21 11:08:40,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:08:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:41,067 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:41,068 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:41,068 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:41,068 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:41,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:08:41,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:41,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 565 [2020-09-21 11:08:41,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:41,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:08:41,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:41,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-21 11:08:41,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:41,447 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:08:41,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:08:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:41,522 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:41,522 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:41,522 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:41,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:41,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:41,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:41,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 11:08:41,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:08:41,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:41,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:08:41,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:41,560 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:41,560 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:41,560 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:41,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:41,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:41,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:41,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:08:41,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:41,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:41,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:41,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:41,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:41,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:08:41,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:41,565 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:41,565 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:41,565 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:41,565 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:41,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:41,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:41,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:41,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:41,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:41,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:41,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:41,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:41,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:41,570 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:41,570 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:41,570 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:41,570 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:41,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:41,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:41,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:41,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:41,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:41,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:41,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:41,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:41,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:08:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:41,575 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:41,576 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:41,576 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:41,576 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:41,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:41,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:41,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:41,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:41,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:41,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:41,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:41,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:41,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:08:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:41,592 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:41,592 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:41,593 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:41,593 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:41,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:41,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:41,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:41,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:41,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:41,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:41,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:41,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:41,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:08:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:41,622 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:41,623 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:41,623 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:41,623 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:41,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:41,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:41,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:41,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:41,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:41,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:41,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:41,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:41,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:08:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:41,644 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:41,644 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:41,645 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:41,645 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:41,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:08:41,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:41,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:41,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:41,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:41,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:41,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:08:41,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:41,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:41,658 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:41,658 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:41,659 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:41,659 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:41,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:08:41,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:41,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:41,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:41,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:41,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:41,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:08:41,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:41,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:41,670 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:41,671 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:41,671 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:41,671 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:41,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:08:41,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:41,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:08:41,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:41,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:41,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:41,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:08:41,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:41,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:41,679 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:41,679 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:41,679 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:41,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:41,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:08:41,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:41,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:41,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:41,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:41,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:41,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:41,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:41,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:08:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:41,685 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:41,685 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:41,686 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:41,686 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:41,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:41,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:41,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:41,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:41,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:41,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-09-21 11:08:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:41,692 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:41,692 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:41,692 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:41,692 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:41,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:41,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:41,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:41,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:41,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:41,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:41,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:41,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:41,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 11:08:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:41,703 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:41,703 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:41,704 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:41,704 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:41,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:41,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:41,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:08:41,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:41,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:08:41,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:41,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:41,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:41,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:08:41,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1982142636] [2020-09-21 11:08:41,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:08:41,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 11:08:41,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506274126] [2020-09-21 11:08:41,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:08:41,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:08:41,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:08:41,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:08:41,745 INFO L87 Difference]: Start difference. First operand 370 states and 426 transitions. Second operand 10 states. [2020-09-21 11:08:42,392 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:08:43,729 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:08:44,981 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 11:08:45,307 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:08:45,663 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:08:46,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:08:46,148 INFO L93 Difference]: Finished difference Result 818 states and 1011 transitions. [2020-09-21 11:08:46,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 11:08:46,149 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-09-21 11:08:46,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:08:46,154 INFO L225 Difference]: With dead ends: 818 [2020-09-21 11:08:46,154 INFO L226 Difference]: Without dead ends: 476 [2020-09-21 11:08:46,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=194, Invalid=508, Unknown=0, NotChecked=0, Total=702 [2020-09-21 11:08:46,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-09-21 11:08:46,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 369. [2020-09-21 11:08:46,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-09-21 11:08:46,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 423 transitions. [2020-09-21 11:08:46,235 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 423 transitions. Word has length 87 [2020-09-21 11:08:46,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:08:46,236 INFO L479 AbstractCegarLoop]: Abstraction has 369 states and 423 transitions. [2020-09-21 11:08:46,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:08:46,236 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 423 transitions. [2020-09-21 11:08:46,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-21 11:08:46,238 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:08:46,238 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:08:46,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:08:46,239 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:08:46,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:08:46,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1138633269, now seen corresponding path program 1 times [2020-09-21 11:08:46,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:08:46,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1590063960] [2020-09-21 11:08:46,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:08:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:46,300 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:46,300 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:46,300 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:46,300 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:46,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-21 11:08:46,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:46,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:08:46,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:46,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:08:46,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-09-21 11:08:46,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:08:46,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:46,564 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:08:46,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:08:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:46,573 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:46,573 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:46,573 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:46,573 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:46,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:46,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:46,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:46,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:46,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:46,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:46,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:46,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:46,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:08:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:46,608 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:46,609 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:46,640 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:46,640 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:46,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:46,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:46,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-21 11:08:46,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:46,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:46,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:46,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:46,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:46,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:08:46,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:46,649 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:46,650 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:46,650 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:46,650 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:46,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:46,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:46,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:46,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:46,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:46,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:46,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:46,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:46,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:46,654 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:46,654 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:46,655 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:46,655 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:46,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:46,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:46,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:46,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:46,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:46,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:46,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:46,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:46,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:08:46,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:46,660 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:46,660 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:46,660 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:46,661 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:46,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:46,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:46,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:46,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:46,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:46,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:46,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:46,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:46,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:08:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:46,674 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:46,675 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:46,675 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:46,675 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:46,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:46,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:46,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:46,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:46,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:46,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:46,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:46,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:46,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:08:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:46,687 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:46,688 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:46,688 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:46,688 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:46,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:46,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:46,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:46,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:46,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:46,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:46,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:46,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:46,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:08:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:46,713 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:46,713 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:46,714 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:46,714 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:46,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:08:46,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:46,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:08:46,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:46,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:08:46,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:08:46,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:08:46,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:46,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:46,735 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:46,735 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:46,736 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:46,736 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:46,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:08:46,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:46,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:08:46,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:46,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:08:46,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:08:46,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:08:46,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:46,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:46,793 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:46,793 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:46,794 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:46,794 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:46,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:08:46,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:46,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:08:46,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:46,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:08:46,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:46,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:08:46,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:46,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:46,822 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:46,822 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:46,823 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:46,823 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:46,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:08:46,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:46,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:46,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:46,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:46,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:46,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:46,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:46,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:08:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:46,830 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:46,830 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:46,830 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:46,831 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:46,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:08:46,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:46,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:46,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:46,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:46,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 11:08:46,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:46,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:46,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:46,837 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:46,838 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:46,838 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:46,838 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:46,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:08:46,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:46,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:46,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:46,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:46,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:46,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:46,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:46,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:46,843 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:46,844 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:46,844 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:46,844 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:46,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:46,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:46,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:46,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:46,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:46,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:46,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:46,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:46,850 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:46,850 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:46,850 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:46,851 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:46,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:46,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:46,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:46,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:46,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:46,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:46,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:46,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:46,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-09-21 11:08:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:46,858 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:46,859 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:46,859 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:46,859 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:46,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:46,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:46,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:46,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:46,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:46,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:46,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:46,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:46,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-21 11:08:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:46,864 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:46,864 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:46,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:46,865 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:46,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:46,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:46,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:46,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:46,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:46,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:46,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:46,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:46,880 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 11:08:46,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1590063960] [2020-09-21 11:08:46,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:08:46,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 11:08:46,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992401690] [2020-09-21 11:08:46,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:08:46,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:08:46,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:08:46,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:08:46,883 INFO L87 Difference]: Start difference. First operand 369 states and 423 transitions. Second operand 10 states. [2020-09-21 11:08:47,974 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:08:48,271 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 11:08:48,596 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:08:48,924 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:08:50,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:08:50,283 INFO L93 Difference]: Finished difference Result 825 states and 1040 transitions. [2020-09-21 11:08:50,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:08:50,285 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 103 [2020-09-21 11:08:50,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:08:50,289 INFO L225 Difference]: With dead ends: 825 [2020-09-21 11:08:50,289 INFO L226 Difference]: Without dead ends: 484 [2020-09-21 11:08:50,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-21 11:08:50,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2020-09-21 11:08:50,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 379. [2020-09-21 11:08:50,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2020-09-21 11:08:50,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 433 transitions. [2020-09-21 11:08:50,367 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 433 transitions. Word has length 103 [2020-09-21 11:08:50,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:08:50,368 INFO L479 AbstractCegarLoop]: Abstraction has 379 states and 433 transitions. [2020-09-21 11:08:50,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:08:50,368 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 433 transitions. [2020-09-21 11:08:50,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-21 11:08:50,370 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:08:50,370 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:08:50,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:08:50,371 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:08:50,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:08:50,371 INFO L82 PathProgramCache]: Analyzing trace with hash 789639433, now seen corresponding path program 1 times [2020-09-21 11:08:50,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:08:50,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433212482] [2020-09-21 11:08:50,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:08:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:50,422 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:08:50,423 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -60 [2020-09-21 11:08:50,423 FATAL L256 erpolLogProxyWrapper]: Difference in width: 60 [2020-09-21 11:08:50,423 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:50,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-21 11:08:50,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:50,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:08:50,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:50,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:08:50,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-09-21 11:08:50,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:50,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:50,701 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:08:50,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:08:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:50,709 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:50,709 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:50,710 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:50,710 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:50,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:50,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:50,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:50,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:50,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:50,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:50,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:50,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:50,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:08:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:50,737 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:50,737 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:50,737 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:50,737 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:50,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:50,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:50,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:50,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:50,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:50,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:50,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:50,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:50,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:08:50,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:50,741 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:50,741 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:50,741 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:50,741 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:50,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:50,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:50,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:50,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:50,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:50,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:50,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:50,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:50,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:50,745 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:50,745 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:50,745 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:50,746 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:50,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:50,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:50,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:50,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:50,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:50,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:50,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:50,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:50,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:08:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:50,750 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:50,750 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:50,750 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:50,750 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:50,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:50,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:50,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:50,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:50,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:50,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:50,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:50,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:50,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:08:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:50,772 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:50,772 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:50,773 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:50,773 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:50,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:50,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:50,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:50,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:50,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:50,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:50,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:50,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:50,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:08:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:50,785 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:50,785 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:50,785 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:50,785 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:50,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:50,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:50,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:50,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:50,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:50,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:50,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:50,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:50,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:08:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:50,806 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:50,807 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:50,807 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:50,807 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:50,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:08:50,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:50,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:08:50,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:50,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:08:50,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:08:50,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:50,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:50,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:50,824 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:50,825 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:50,825 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:50,825 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:50,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:08:50,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:50,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:08:50,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:50,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:08:50,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:08:50,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:50,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:50,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:50,837 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:50,837 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:50,837 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:50,837 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:50,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:08:50,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:50,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:08:50,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:50,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:08:50,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:08:50,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:50,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:50,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:50,864 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:50,864 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:50,864 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:50,864 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:50,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:08:50,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:50,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:08:50,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:50,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:08:50,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:50,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:50,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:50,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:08:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:50,882 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:50,882 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:50,883 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:50,883 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:50,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:08:50,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:50,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:50,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:50,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:50,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 11:08:50,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:50,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:50,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:50,889 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:50,889 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:50,889 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:50,889 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:50,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:08:50,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:50,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:50,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:50,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:50,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:50,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:50,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:50,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:50,894 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:50,894 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:50,895 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:50,895 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:50,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:50,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:50,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:50,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:50,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:50,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:50,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:50,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:50,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:50,899 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:50,900 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:50,900 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:50,900 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:50,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:50,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:50,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:50,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:50,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:50,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:50,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:50,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:50,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-09-21 11:08:50,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:50,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:50,909 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:50,909 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:50,909 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:50,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:50,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:50,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:50,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:50,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:50,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:50,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:50,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:50,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-21 11:08:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:50,915 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:50,915 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:50,915 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:50,916 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:50,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:50,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:50,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:50,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:50,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:50,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:50,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:50,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:50,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 11:08:50,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [433212482] [2020-09-21 11:08:50,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:08:50,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:08:50,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817926740] [2020-09-21 11:08:50,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:08:50,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:08:50,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:08:50,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:08:50,939 INFO L87 Difference]: Start difference. First operand 379 states and 433 transitions. Second operand 9 states. [2020-09-21 11:08:51,934 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:08:52,246 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:08:52,566 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:08:53,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:08:53,989 INFO L93 Difference]: Finished difference Result 845 states and 1062 transitions. [2020-09-21 11:08:53,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:08:53,990 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 103 [2020-09-21 11:08:53,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:08:53,997 INFO L225 Difference]: With dead ends: 845 [2020-09-21 11:08:53,997 INFO L226 Difference]: Without dead ends: 494 [2020-09-21 11:08:54,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-09-21 11:08:54,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-09-21 11:08:54,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 387. [2020-09-21 11:08:54,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2020-09-21 11:08:54,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 441 transitions. [2020-09-21 11:08:54,133 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 441 transitions. Word has length 103 [2020-09-21 11:08:54,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:08:54,134 INFO L479 AbstractCegarLoop]: Abstraction has 387 states and 441 transitions. [2020-09-21 11:08:54,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:08:54,134 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 441 transitions. [2020-09-21 11:08:54,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-21 11:08:54,137 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:08:54,137 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:08:54,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:08:54,138 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:08:54,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:08:54,138 INFO L82 PathProgramCache]: Analyzing trace with hash 549099304, now seen corresponding path program 1 times [2020-09-21 11:08:54,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:08:54,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1033938099] [2020-09-21 11:08:54,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:08:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:54,414 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:54,414 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:54,415 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:54,415 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:54,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-21 11:08:54,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:54,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-21 11:08:54,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:54,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:08:54,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:54,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-21 11:08:54,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:54,700 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:08:54,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:08:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:54,772 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:54,773 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:54,773 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:54,773 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:54,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:54,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:54,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 11:08:54,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:54,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:54,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:54,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:08:54,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:54,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:08:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:54,808 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:54,808 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:54,809 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:54,809 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:54,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:54,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:54,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:08:54,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:54,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:54,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:54,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:54,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:54,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:08:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:54,813 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:54,814 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:54,814 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:54,814 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:54,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:54,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:54,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:54,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:54,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:54,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:54,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:54,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:54,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:54,818 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:54,818 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:54,819 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:54,819 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:54,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:54,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:54,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:54,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:54,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:54,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:54,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:54,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:54,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:08:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:54,828 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:54,828 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:54,828 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:54,829 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:54,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:54,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:54,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:08:54,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:54,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:54,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:54,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:54,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:54,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:08:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:54,846 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:54,846 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:54,846 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:54,847 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:54,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:54,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:54,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:54,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:54,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:54,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:54,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:54,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:54,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:08:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:54,861 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:54,861 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:54,862 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:54,862 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:54,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:54,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:54,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:54,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:54,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:54,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:08:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:54,883 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:54,883 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:54,883 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:54,884 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:54,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:08:54,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:54,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:08:54,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:08:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 11:08:54,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:54,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:54,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:54,908 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:54,908 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:54,908 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:54,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:08:54,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:54,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:54,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:54,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:54,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:54,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:08:54,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:54,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:54,937 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:54,937 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:54,938 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:54,938 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:54,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:08:54,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:54,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:08:54,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:54,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:54,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:54,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:08:54,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:54,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:54,960 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:54,960 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:54,960 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:54,960 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:54,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:08:54,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:54,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:54,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:54,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:54,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:54,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:08:54,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:54,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:08:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:54,977 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:54,977 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:54,978 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:54,978 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:54,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:08:54,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:54,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:54,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:54,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:54,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:54,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 11:08:54,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:54,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:54,989 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:54,989 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:54,990 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:54,990 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:54,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:08:54,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:54,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:54,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:54,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:54,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:54,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:54,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:54,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:54,996 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:54,996 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:54,996 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:54,997 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:54,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:54,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:54,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:54,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:54,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:54,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:54,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:54,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:55,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:55,002 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:55,002 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:55,002 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:55,003 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:55,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:55,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:55,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:55,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:55,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:55,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:55,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:55,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:55,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-09-21 11:08:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:55,013 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:55,014 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:55,014 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:55,014 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:55,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:55,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:55,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:08:55,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:55,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:55,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-21 11:08:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:55,019 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:55,019 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:55,019 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:55,019 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:55,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:55,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:55,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:55,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:55,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:55,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:55,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:55,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:55,042 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 11:08:55,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1033938099] [2020-09-21 11:08:55,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:08:55,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:08:55,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716453919] [2020-09-21 11:08:55,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:08:55,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:08:55,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:08:55,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:08:55,044 INFO L87 Difference]: Start difference. First operand 387 states and 441 transitions. Second operand 8 states. [2020-09-21 11:08:55,501 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:08:56,153 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:08:58,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:08:58,753 INFO L93 Difference]: Finished difference Result 1164 states and 1513 transitions. [2020-09-21 11:08:58,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 11:08:58,753 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2020-09-21 11:08:58,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:08:58,761 INFO L225 Difference]: With dead ends: 1164 [2020-09-21 11:08:58,761 INFO L226 Difference]: Without dead ends: 805 [2020-09-21 11:08:58,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:08:58,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2020-09-21 11:08:58,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 673. [2020-09-21 11:08:58,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2020-09-21 11:08:58,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 795 transitions. [2020-09-21 11:08:58,905 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 795 transitions. Word has length 103 [2020-09-21 11:08:58,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:08:58,906 INFO L479 AbstractCegarLoop]: Abstraction has 673 states and 795 transitions. [2020-09-21 11:08:58,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:08:58,907 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 795 transitions. [2020-09-21 11:08:58,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-21 11:08:58,910 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:08:58,910 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:08:58,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:08:58,911 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:08:58,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:08:58,911 INFO L82 PathProgramCache]: Analyzing trace with hash 290063790, now seen corresponding path program 1 times [2020-09-21 11:08:58,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:08:58,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [88331442] [2020-09-21 11:08:58,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:08:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:58,981 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:08:58,981 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -38 [2020-09-21 11:08:58,981 FATAL L256 erpolLogProxyWrapper]: Difference in width: 38 [2020-09-21 11:08:58,982 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:58,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-09-21 11:08:58,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:58,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:08:58,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:08:58,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-21 11:08:58,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:08:58,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:59,274 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:08:59,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:08:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:59,282 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:59,282 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:59,282 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:59,282 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:59,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:59,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:59,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:59,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:59,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:59,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:59,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:59,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:59,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:08:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:59,307 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:59,308 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:59,308 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:59,308 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:59,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:59,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:59,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:59,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:59,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:59,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:59,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:59,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:59,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:08:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:59,311 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:59,311 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:59,311 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:59,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:59,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:59,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:59,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:59,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:59,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:59,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:59,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:59,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:59,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:59,315 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:59,315 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:59,315 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:59,316 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:59,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:59,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:59,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:59,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:59,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:59,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:59,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:59,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:59,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:08:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:59,319 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:59,320 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:59,320 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:59,320 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:59,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:59,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:59,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:59,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:59,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:59,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:59,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:59,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:59,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:08:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:59,337 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:59,337 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:59,337 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:59,337 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:59,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:59,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:59,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:59,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:59,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:59,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:59,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:59,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:59,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:08:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:59,350 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:59,350 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:59,351 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:59,351 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:59,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:59,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:59,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:59,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:59,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:59,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:59,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:59,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:59,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:08:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:59,365 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:59,365 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:59,365 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:59,365 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:59,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:59,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:59,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:59,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:59,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:59,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:59,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:08:59,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:59,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:08:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:59,393 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:59,393 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:59,393 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:59,393 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:59,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:08:59,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:59,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:08:59,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:59,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:08:59,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-21 11:08:59,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:08:59,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:59,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:59,427 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:59,428 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:59,428 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:59,428 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:59,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:08:59,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:59,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:08:59,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:59,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:08:59,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:59,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-21 11:08:59,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:59,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:59,437 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:59,437 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:59,437 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:59,437 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:59,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:08:59,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:59,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:59,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:59,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:59,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:59,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:59,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:59,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:59,442 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:59,442 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:59,442 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:59,442 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:59,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:08:59,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:59,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:59,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:59,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:59,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:59,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:59,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:59,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:08:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:59,457 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:59,457 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:59,457 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:59,458 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:59,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:08:59,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:59,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:08:59,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:59,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:08:59,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:59,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:08:59,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:59,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:59,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:59,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:59,496 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:59,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:59,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:08:59,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:59,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:08:59,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:59,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:08:59,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:59,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:08:59,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:59,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:59,538 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:59,539 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:59,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:59,539 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:59,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:59,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:59,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:08:59,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:59,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:08:59,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:59,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:59,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:59,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:59,559 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:59,560 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:59,560 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:59,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:59,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:59,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:59,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:59,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:59,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:59,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:59,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:59,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:59,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-21 11:08:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:59,567 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:59,567 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:59,567 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:59,568 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:59,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:59,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:59,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:59,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:59,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:59,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:59,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:59,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-09-21 11:08:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:59,572 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:59,572 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:59,572 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:59,572 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:59,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:59,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:59,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:59,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:59,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:59,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:59,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:59,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:59,598 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:08:59,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [88331442] [2020-09-21 11:08:59,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:08:59,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-21 11:08:59,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465632568] [2020-09-21 11:08:59,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-21 11:08:59,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:08:59,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-21 11:08:59,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:08:59,602 INFO L87 Difference]: Start difference. First operand 673 states and 795 transitions. Second operand 14 states. [2020-09-21 11:09:00,258 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:09:01,105 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:09:02,112 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:09:02,519 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:09:02,864 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:09:03,208 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:09:03,569 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:09:03,915 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:09:04,250 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:09:04,564 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:09:04,974 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:09:05,408 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:09:07,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:07,791 INFO L93 Difference]: Finished difference Result 1422 states and 1767 transitions. [2020-09-21 11:09:07,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-21 11:09:07,792 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 107 [2020-09-21 11:09:07,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:07,797 INFO L225 Difference]: With dead ends: 1422 [2020-09-21 11:09:07,797 INFO L226 Difference]: Without dead ends: 777 [2020-09-21 11:09:07,800 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=433, Invalid=1823, Unknown=0, NotChecked=0, Total=2256 [2020-09-21 11:09:07,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2020-09-21 11:09:07,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 654. [2020-09-21 11:09:07,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 654 states. [2020-09-21 11:09:07,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 763 transitions. [2020-09-21 11:09:07,914 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 763 transitions. Word has length 107 [2020-09-21 11:09:07,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:07,915 INFO L479 AbstractCegarLoop]: Abstraction has 654 states and 763 transitions. [2020-09-21 11:09:07,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-21 11:09:07,915 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 763 transitions. [2020-09-21 11:09:07,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-21 11:09:07,918 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:07,918 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:09:07,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:09:07,919 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:07,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:07,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1933824326, now seen corresponding path program 1 times [2020-09-21 11:09:07,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:07,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024301984] [2020-09-21 11:09:07,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:07,982 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:09:07,982 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -126 [2020-09-21 11:09:07,982 FATAL L256 erpolLogProxyWrapper]: Difference in width: 126 [2020-09-21 11:09:07,982 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:07,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-09-21 11:09:07,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:07,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:09:07,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:07,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:09:07,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-21 11:09:07,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-21 11:09:07,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,321 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:09:08,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,327 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,327 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,327 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,327 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:08,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:09:08,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,352 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,352 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,353 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,353 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:08,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:09:08,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,356 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,356 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,357 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,357 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:08,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:09:08,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,360 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,360 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,361 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,361 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:08,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:09:08,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,364 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,365 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,365 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,365 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:08,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:09:08,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:09:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,375 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,376 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,376 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,376 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:08,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:09:08,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:09:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,391 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,392 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,392 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,392 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:08,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:08,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:09:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,420 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,420 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,421 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,421 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-21 11:09:08,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:09:08,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:09:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,458 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,458 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,459 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,459 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:09:08,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:08,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:09:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,468 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,469 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,469 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,470 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:09:08,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:08,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:08,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:09:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,478 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,478 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,479 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,479 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:09:08,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:08,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:09:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,484 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,484 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,485 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,485 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:09:08,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:08,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:09:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,490 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,490 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,491 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,491 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:09:08,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:08,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:08,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:09:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,498 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,498 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,498 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,499 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:09:08,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:08,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:08,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:09:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,505 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,505 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,505 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,506 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:08,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:08,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,510 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,510 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,511 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,511 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:08,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:08,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:08,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:09:08,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,520 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,521 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,521 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,521 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:09:08,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:08,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:08,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:09:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,530 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,531 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,531 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,531 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:08,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:08,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-21 11:09:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,552 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,553 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,553 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,553 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:08,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:08,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:08,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:09:08,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-09-21 11:09:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,558 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,559 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,559 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:08,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:08,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:08,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:08,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-21 11:09:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,574 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,575 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,575 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,575 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:09:08,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:09:08,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:09:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:09:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:09:08,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:09:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,643 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,643 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,644 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,644 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:09:08,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:09:08,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:09:08,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:09:08,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:09:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,676 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,676 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,677 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,677 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:08,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:08,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:09:08,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:08,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:08,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 11:09:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,698 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,698 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,698 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,699 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:09:08,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:08,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:08,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:09:08,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:09:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,705 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,705 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,706 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,706 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:08,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:08,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:08,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-21 11:09:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,711 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,711 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,711 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,712 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:08,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:09:08,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:08,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-21 11:09:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:08,718 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:08,718 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:08,718 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:08,718 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:08,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:08,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:08,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:08,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:08,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:08,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:08,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:08,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:08,751 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-21 11:09:08,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024301984] [2020-09-21 11:09:08,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:09:08,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-21 11:09:08,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830700957] [2020-09-21 11:09:08,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-21 11:09:08,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:08,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-21 11:09:08,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:09:08,754 INFO L87 Difference]: Start difference. First operand 654 states and 763 transitions. Second operand 15 states. [2020-09-21 11:09:09,289 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:09:10,148 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:09:11,151 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 11:09:11,513 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 11:09:11,841 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 11:09:12,182 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:09:12,558 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:09:12,873 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:09:14,330 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-21 11:09:14,976 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-21 11:09:15,567 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-21 11:09:16,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:16,595 INFO L93 Difference]: Finished difference Result 1225 states and 1520 transitions. [2020-09-21 11:09:16,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-09-21 11:09:16,595 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 158 [2020-09-21 11:09:16,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:16,596 INFO L225 Difference]: With dead ends: 1225 [2020-09-21 11:09:16,597 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:09:16,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 613 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=433, Invalid=1729, Unknown=0, NotChecked=0, Total=2162 [2020-09-21 11:09:16,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:09:16,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:09:16,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:09:16,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:09:16,602 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 158 [2020-09-21 11:09:16,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:16,602 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:09:16,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-21 11:09:16,603 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:09:16,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:09:16,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:09:16,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:09:16,829 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-21 11:09:17,051 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-21 11:09:17,235 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-21 11:09:17,426 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-21 11:09:17,600 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 11:09:17,793 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 196