/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:08:55,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:08:55,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:08:55,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:08:55,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:08:55,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:08:55,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:08:55,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:08:55,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:08:55,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:08:55,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:08:55,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:08:55,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:08:55,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:08:55,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:08:55,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:08:55,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:08:55,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:08:55,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:08:55,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:08:55,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:08:55,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:08:55,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:08:55,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:08:55,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:08:55,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:08:55,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:08:55,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:08:55,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:08:55,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:08:55,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:08:55,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:08:55,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:08:55,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:08:55,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:08:55,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:08:55,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:08:55,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:08:55,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:08:55,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:08:55,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:08:55,883 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 [2020-09-24 19:08:55,910 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:08:55,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:08:55,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:08:55,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:08:55,912 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:08:55,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:08:55,913 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:08:55,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:08:55,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:08:55,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:08:55,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:08:55,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:08:55,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:08:55,914 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:08:55,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:08:55,914 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:08:55,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:08:55,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:08:55,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:08:55,915 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:08:55,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:08:55,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:08:55,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:08:55,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:08:55,916 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:08:55,916 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:08:55,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:08:55,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:08:55,917 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:08:55,917 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:08:56,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:08:56,406 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:08:56,411 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:08:56,413 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:08:56,413 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:08:56,415 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product42.cil.c [2020-09-24 19:08:56,497 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d9343a0f/7c0785188f6b45b2be806a20ea6083d7/FLAG5d149ba0e [2020-09-24 19:08:57,064 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:08:57,065 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product42.cil.c [2020-09-24 19:08:57,082 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d9343a0f/7c0785188f6b45b2be806a20ea6083d7/FLAG5d149ba0e [2020-09-24 19:08:57,345 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d9343a0f/7c0785188f6b45b2be806a20ea6083d7 [2020-09-24 19:08:57,359 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:08:57,365 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:08:57,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:08:57,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:08:57,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:08:57,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:08:57" (1/1) ... [2020-09-24 19:08:57,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1516d3a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:57, skipping insertion in model container [2020-09-24 19:08:57,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:08:57" (1/1) ... [2020-09-24 19:08:57,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:08:57,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:08:57,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:08:57,984 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:08:58,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:08:58,118 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:08:58,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:58 WrapperNode [2020-09-24 19:08:58,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:08:58,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:08:58,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:08:58,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:08:58,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:58" (1/1) ... [2020-09-24 19:08:58,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:58" (1/1) ... [2020-09-24 19:08:58,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:58" (1/1) ... [2020-09-24 19:08:58,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:58" (1/1) ... [2020-09-24 19:08:58,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:58" (1/1) ... [2020-09-24 19:08:58,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:58" (1/1) ... [2020-09-24 19:08:58,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:58" (1/1) ... [2020-09-24 19:08:58,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:08:58,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:08:58,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:08:58,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:08:58,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:58" (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 [2020-09-24 19:08:58,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:08:58,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:08:58,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:08:58,307 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:08:58,307 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:08:58,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:08:58,307 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:08:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:08:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:08:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:08:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:08:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:08:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 19:08:58,309 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:08:58,309 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:08:58,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:08:58,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:08:58,309 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:08:58,310 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:08:58,311 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 19:08:58,311 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:08:58,311 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:08:58,311 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:08:58,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:08:58,312 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:08:58,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:08:58,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:08:58,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:08:58,312 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:08:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:08:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:08:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:08:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:08:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:08:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:08:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:08:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:08:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:08:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 19:08:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:08:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:08:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:08:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:08:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:08:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:08:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:08:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:08:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:08:58,316 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:08:58,316 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:08:58,316 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:08:58,316 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:08:58,316 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:08:58,316 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:08:58,317 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:08:58,317 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 19:08:58,317 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:08:58,317 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:08:58,317 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:08:58,317 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:08:58,318 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:08:58,318 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:08:58,318 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:08:58,318 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 19:08:58,318 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:08:58,319 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:08:58,319 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:08:58,319 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 19:08:58,319 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:08:58,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:08:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:08:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:08:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:08:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:08:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:08:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:08:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:08:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:08:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:08:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:08:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:08:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:08:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:08:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:08:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:08:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:08:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:08:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:08:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:08:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:08:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:08:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:08:59,521 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:08:59,521 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:08:59,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:08:59 BoogieIcfgContainer [2020-09-24 19:08:59,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:08:59,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:08:59,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:08:59,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:08:59,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:08:57" (1/3) ... [2020-09-24 19:08:59,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112d37f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:08:59, skipping insertion in model container [2020-09-24 19:08:59,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:58" (2/3) ... [2020-09-24 19:08:59,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112d37f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:08:59, skipping insertion in model container [2020-09-24 19:08:59,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:08:59" (3/3) ... [2020-09-24 19:08:59,539 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product42.cil.c [2020-09-24 19:08:59,551 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:08:59,563 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:08:59,585 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:08:59,617 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:08:59,617 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:08:59,617 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:08:59,617 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:08:59,618 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:08:59,618 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:08:59,618 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:08:59,618 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:08:59,646 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-24 19:08:59,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 19:08:59,665 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:59,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:08:59,667 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:59,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:59,675 INFO L82 PathProgramCache]: Analyzing trace with hash 876604812, now seen corresponding path program 1 times [2020-09-24 19:08:59,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:59,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1797819421] [2020-09-24 19:08:59,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:09:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:00,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:00,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 19:09:01,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:09:01,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1017 [2020-09-24 19:09:01,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:01,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 19:09:01,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:01,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:09:01,515 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:09:01,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:09:01,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:01,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:09:01,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:01,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-24 19:09:01,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:01,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:01,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:01,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:01,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:09:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:01,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:01,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:01,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:01,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:01,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:01,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:01,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:01,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:09:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:01,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:01,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:01,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:01,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:01,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:01,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:01,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:01,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:09:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:01,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:01,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:01,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:01,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:01,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:01,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:01,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:01,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:09:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:01,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:01,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:01,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:01,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:01,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:01,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:01,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:01,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:09:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:01,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:01,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:01,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:01,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:01,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:01,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:01,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:01,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:09:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:01,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:01,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:01,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:01,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:01,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:01,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:01,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:01,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 19:09:01,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:01,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:01,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:01,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:01,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:01,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:01,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:09:01,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1797819421] [2020-09-24 19:09:01,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:09:01,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:09:01,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961074910] [2020-09-24 19:09:01,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:09:01,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:09:01,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:09:01,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:09:01,890 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 3 states. [2020-09-24 19:09:03,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:09:03,171 INFO L93 Difference]: Finished difference Result 486 states and 575 transitions. [2020-09-24 19:09:03,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:09:03,173 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 19:09:03,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:09:03,198 INFO L225 Difference]: With dead ends: 486 [2020-09-24 19:09:03,198 INFO L226 Difference]: Without dead ends: 301 [2020-09-24 19:09:03,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:09:03,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-24 19:09:03,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 259. [2020-09-24 19:09:03,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-24 19:09:03,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 280 transitions. [2020-09-24 19:09:03,323 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 280 transitions. Word has length 153 [2020-09-24 19:09:03,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:09:03,325 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 280 transitions. [2020-09-24 19:09:03,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:09:03,325 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 280 transitions. [2020-09-24 19:09:03,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 19:09:03,330 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:09:03,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:09:03,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:09:03,331 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:09:03,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:09:03,332 INFO L82 PathProgramCache]: Analyzing trace with hash -880334198, now seen corresponding path program 1 times [2020-09-24 19:09:03,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:09:03,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443781310] [2020-09-24 19:09:03,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:09:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:03,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:03,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:04,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:04,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 19:09:04,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:09:04,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1035 [2020-09-24 19:09:04,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:04,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:04,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 19:09:04,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:09:04,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:04,747 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:09:04,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:09:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:04,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:04,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:04,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:09:04,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:04,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 19:09:04,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:04,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:04,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:04,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:04,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:04,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:09:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:04,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:04,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:04,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:04,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:04,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:04,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:04,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:04,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:04,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:04,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:04,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:09:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:04,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:04,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:04,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:04,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:04,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:04,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:04,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:04,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:04,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:04,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:04,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:09:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:04,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:04,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:04,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:04,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:04,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:09:04,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:04,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:04,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:04,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:04,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:04,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:09:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:04,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:04,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:04,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:04,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:04,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:04,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:04,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:04,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:04,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:04,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:04,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 19:09:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:04,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:04,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:04,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:04,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:04,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:04,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:04,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:04,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:04,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:04,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:04,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:09:04,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:04,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:04,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:04,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:04,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:04,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:04,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:04,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:04,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:04,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:04,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:04,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 19:09:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:04,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:04,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:04,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:04,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:04,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:04,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:04,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:04,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:04,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:04,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:05,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:09:05,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443781310] [2020-09-24 19:09:05,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:09:05,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:09:05,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193774668] [2020-09-24 19:09:05,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:09:05,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:09:05,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:09:05,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:09:05,030 INFO L87 Difference]: Start difference. First operand 259 states and 280 transitions. Second operand 4 states. [2020-09-24 19:09:05,753 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:06,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:09:06,828 INFO L93 Difference]: Finished difference Result 399 states and 446 transitions. [2020-09-24 19:09:06,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:09:06,830 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 19:09:06,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:09:06,836 INFO L225 Difference]: With dead ends: 399 [2020-09-24 19:09:06,837 INFO L226 Difference]: Without dead ends: 284 [2020-09-24 19:09:06,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:09:06,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-24 19:09:06,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 249. [2020-09-24 19:09:06,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-24 19:09:06,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 267 transitions. [2020-09-24 19:09:06,884 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 267 transitions. Word has length 154 [2020-09-24 19:09:06,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:09:06,885 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 267 transitions. [2020-09-24 19:09:06,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:09:06,885 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 267 transitions. [2020-09-24 19:09:06,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 19:09:06,888 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:09:06,888 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:09:06,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:09:06,889 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:09:06,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:09:06,889 INFO L82 PathProgramCache]: Analyzing trace with hash -2069807768, now seen corresponding path program 1 times [2020-09-24 19:09:06,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:09:06,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629549658] [2020-09-24 19:09:06,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:09:06,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:06,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:07,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:07,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:07,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 19:09:07,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:09:07,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1018 [2020-09-24 19:09:07,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:07,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:07,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 19:09:07,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:09:07,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:08,310 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:09:08,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:09:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:08,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:08,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:08,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:09:08,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:08,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-09-24 19:09:08,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:08,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:08,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:08,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:08,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:08,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:09:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:08,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:08,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:08,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:08,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:08,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:08,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:08,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:08,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:08,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:08,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:08,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:09:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:08,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:08,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:08,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:08,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:08,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:08,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:08,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:08,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:08,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:09:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:08,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:08,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:08,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:08,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:08,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:08,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:08,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:08,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:08,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:08,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:08,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:09:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:08,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:08,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:08,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:08,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:08,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:09:08,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:08,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:08,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:08,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:08,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:08,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:09:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:08,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:08,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:08,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:09:08,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:08,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:08,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:09:08,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:08,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 19:09:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:08,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:08,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:08,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:08,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:08,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:08,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:08,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:08,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:08,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:08,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:08,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 19:09:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:08,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:08,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:08,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:08,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:08,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:08,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:08,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:08,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:08,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:08,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:08,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 19:09:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:08,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:08,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:08,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:08,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:08,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:08,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:08,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:08,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:08,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:08,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:08,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:09:08,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629549658] [2020-09-24 19:09:08,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:09:08,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:09:08,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126465852] [2020-09-24 19:09:08,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:09:08,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:09:08,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:09:08,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:09:08,683 INFO L87 Difference]: Start difference. First operand 249 states and 267 transitions. Second operand 5 states. [2020-09-24 19:09:09,293 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:09:10,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:09:10,251 INFO L93 Difference]: Finished difference Result 445 states and 508 transitions. [2020-09-24 19:09:10,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:09:10,252 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-24 19:09:10,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:09:10,256 INFO L225 Difference]: With dead ends: 445 [2020-09-24 19:09:10,256 INFO L226 Difference]: Without dead ends: 306 [2020-09-24 19:09:10,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:09:10,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-24 19:09:10,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 249. [2020-09-24 19:09:10,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-24 19:09:10,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 266 transitions. [2020-09-24 19:09:10,304 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 266 transitions. Word has length 167 [2020-09-24 19:09:10,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:09:10,305 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 266 transitions. [2020-09-24 19:09:10,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:09:10,305 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 266 transitions. [2020-09-24 19:09:10,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 19:09:10,308 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:09:10,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:09:10,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:09:10,308 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:09:10,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:09:10,309 INFO L82 PathProgramCache]: Analyzing trace with hash 398712319, now seen corresponding path program 1 times [2020-09-24 19:09:10,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:09:10,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [897915385] [2020-09-24 19:09:10,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:09:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:10,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:10,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:11,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:11,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-24 19:09:11,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:09:11,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1056 [2020-09-24 19:09:11,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:11,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:09:11,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-24 19:09:11,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:09:11,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:11,720 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:09:11,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:09:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:11,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:11,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:11,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:09:11,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:11,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 19:09:11,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:11,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:11,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:11,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:11,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:11,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:09:11,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:11,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:11,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:11,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:11,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:11,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:11,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:11,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:11,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:11,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:11,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:11,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:09:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:11,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:11,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:11,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:11,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:11,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:11,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:11,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:11,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:11,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:11,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:11,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:09:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:11,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:11,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:11,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:11,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:11,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:11,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:11,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:11,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:11,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:11,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:11,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:09:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:11,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:11,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:11,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:11,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:11,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:09:11,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:11,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:11,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:11,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:11,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:11,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:09:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:11,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:11,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:11,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:09:11,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:11,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:11,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:11,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:11,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:11,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:11,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:11,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:09:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:11,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:11,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:11,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:09:11,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:11,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:09:11,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:11,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:09:11,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:09:11,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:09:11,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:11,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:09:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:11,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:11,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:11,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:11,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:11,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:11,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:09:11,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:11,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-24 19:09:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:11,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:11,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:11,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:11,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:11,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:11,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:11,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:11,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:11,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:11,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:11,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 19:09:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:11,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:11,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:11,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:11,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:11,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:11,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:11,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:11,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:11,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:11,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:11,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 19:09:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:11,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:11,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:11,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:11,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:11,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:11,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:11,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:11,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:11,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:11,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:12,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:09:12,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [897915385] [2020-09-24 19:09:12,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:09:12,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:09:12,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465169003] [2020-09-24 19:09:12,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:09:12,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:09:12,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:09:12,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:09:12,073 INFO L87 Difference]: Start difference. First operand 249 states and 266 transitions. Second operand 7 states. [2020-09-24 19:09:12,563 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:14,211 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:15,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:09:15,226 INFO L93 Difference]: Finished difference Result 638 states and 749 transitions. [2020-09-24 19:09:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 19:09:15,227 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-09-24 19:09:15,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:09:15,232 INFO L225 Difference]: With dead ends: 638 [2020-09-24 19:09:15,232 INFO L226 Difference]: Without dead ends: 499 [2020-09-24 19:09:15,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-24 19:09:15,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-09-24 19:09:15,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 372. [2020-09-24 19:09:15,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-09-24 19:09:15,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 401 transitions. [2020-09-24 19:09:15,283 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 401 transitions. Word has length 175 [2020-09-24 19:09:15,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:09:15,284 INFO L479 AbstractCegarLoop]: Abstraction has 372 states and 401 transitions. [2020-09-24 19:09:15,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:09:15,284 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 401 transitions. [2020-09-24 19:09:15,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 19:09:15,287 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:09:15,287 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:09:15,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:09:15,288 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:09:15,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:09:15,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1043835343, now seen corresponding path program 1 times [2020-09-24 19:09:15,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:09:15,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1065646807] [2020-09-24 19:09:15,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:09:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:15,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:15,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:16,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:16,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-24 19:09:16,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:09:16,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1037 [2020-09-24 19:09:16,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:16,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:09:16,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-24 19:09:16,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 19:09:16,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:16,801 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:09:16,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:09:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:16,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:16,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:16,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:09:16,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:16,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-24 19:09:16,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:16,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:16,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:16,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:16,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:16,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:09:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:16,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:16,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:16,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:16,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:16,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:16,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:16,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:16,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:16,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:16,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:17,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:09:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:17,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:17,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:17,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:17,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:17,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:17,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:09:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:17,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:09:17,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:17,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:17,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:17,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:17,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:09:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:17,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:17,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:17,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:17,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:17,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:17,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:09:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:09:17,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:17,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:17,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:17,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:17,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:17,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:09:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:09:17,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 19:09:17,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:17,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:17,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:09:17,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:17,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:09:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:09:17,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:09:17,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:17,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:17,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:09:17,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:17,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:09:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:09:17,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:09:17,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:17,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:17,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:09:17,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:17,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:09:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:17,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:17,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:17,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:17,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:09:17,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:17,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 19:09:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:17,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:09:17,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:17,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:17,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:09:17,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:17,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 19:09:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:17,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:09:17,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:09:17,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:17,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:09:17,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:17,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 19:09:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:17,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:17,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:17,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:17,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:17,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:17,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:09:17,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1065646807] [2020-09-24 19:09:17,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:09:17,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:09:17,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254858999] [2020-09-24 19:09:17,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:09:17,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:09:17,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:09:17,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:09:17,355 INFO L87 Difference]: Start difference. First operand 372 states and 401 transitions. Second operand 11 states. [2020-09-24 19:09:17,852 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:09:20,039 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:09:20,366 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:20,713 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:21,035 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:09:21,344 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:09:21,692 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:09:21,977 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:22,336 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:09:23,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:09:23,673 INFO L93 Difference]: Finished difference Result 1074 states and 1316 transitions. [2020-09-24 19:09:23,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 19:09:23,674 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-09-24 19:09:23,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:09:23,681 INFO L225 Difference]: With dead ends: 1074 [2020-09-24 19:09:23,681 INFO L226 Difference]: Without dead ends: 812 [2020-09-24 19:09:23,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-09-24 19:09:23,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-09-24 19:09:23,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 602. [2020-09-24 19:09:23,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2020-09-24 19:09:23,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 666 transitions. [2020-09-24 19:09:23,783 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 666 transitions. Word has length 199 [2020-09-24 19:09:23,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:09:23,783 INFO L479 AbstractCegarLoop]: Abstraction has 602 states and 666 transitions. [2020-09-24 19:09:23,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:09:23,784 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 666 transitions. [2020-09-24 19:09:23,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 19:09:23,786 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:09:23,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:09:23,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:09:23,787 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:09:23,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:09:23,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1519010768, now seen corresponding path program 1 times [2020-09-24 19:09:23,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:09:23,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740611555] [2020-09-24 19:09:23,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:09:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:23,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:24,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:24,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-09-24 19:09:24,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:24,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 865 [2020-09-24 19:09:24,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:24,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:09:24,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 19:09:24,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:09:24,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:24,994 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:09:24,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:09:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:25,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:25,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:25,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:09:25,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:25,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 19:09:25,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:25,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:25,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:25,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:25,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:25,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:09:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:25,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:25,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:25,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:25,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:25,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:09:25,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:25,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:25,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:25,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:09:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:25,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:25,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:25,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:25,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:25,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:25,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:25,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:25,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:25,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:25,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:25,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:09:25,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:25,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:25,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:25,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:25,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:25,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:25,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:25,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:25,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:25,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:25,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:25,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:09:25,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:25,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:25,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:25,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:25,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:25,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:25,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:25,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:25,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:25,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:25,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:25,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 19:09:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:25,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:25,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:25,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:09:25,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:25,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:25,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:25,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:25,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:25,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:25,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:25,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:09:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:25,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:25,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:25,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:09:25,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:25,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:09:25,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:25,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:25,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:25,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:25,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:25,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:09:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:25,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:25,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:25,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:09:25,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:25,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 19:09:25,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:25,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:09:25,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:09:25,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:09:25,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:25,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:09:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:25,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:25,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:25,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:09:25,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:25,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 19:09:25,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:25,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:09:25,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:09:25,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:09:25,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:25,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:09:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:25,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:25,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:25,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:09:25,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:25,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 19:09:25,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:25,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:09:25,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:25,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:09:25,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:25,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:09:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:25,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:25,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:25,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:25,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:25,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:25,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:25,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:25,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 19:09:25,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:25,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:09:25,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 19:09:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:25,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:25,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:25,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:25,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:25,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:09:25,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:25,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:25,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:25,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:25,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:25,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 19:09:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:25,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:25,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:25,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:25,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:25,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:25,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:25,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:25,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:25,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 19:09:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:25,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:25,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:25,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:25,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:25,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:25,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:25,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:25,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:25,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:25,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:25,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:09:25,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1740611555] [2020-09-24 19:09:25,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:09:25,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:09:25,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940214682] [2020-09-24 19:09:25,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:09:25,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:09:25,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:09:25,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:09:25,594 INFO L87 Difference]: Start difference. First operand 602 states and 666 transitions. Second operand 10 states. [2020-09-24 19:09:27,104 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:27,322 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:09:27,641 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:09:27,928 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:28,260 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:29,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:09:29,884 INFO L93 Difference]: Finished difference Result 1427 states and 1726 transitions. [2020-09-24 19:09:29,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:09:29,885 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 204 [2020-09-24 19:09:29,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:09:29,891 INFO L225 Difference]: With dead ends: 1427 [2020-09-24 19:09:29,891 INFO L226 Difference]: Without dead ends: 935 [2020-09-24 19:09:29,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 19:09:29,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2020-09-24 19:09:29,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 601. [2020-09-24 19:09:29,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-09-24 19:09:29,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 664 transitions. [2020-09-24 19:09:29,977 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 664 transitions. Word has length 204 [2020-09-24 19:09:29,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:09:29,978 INFO L479 AbstractCegarLoop]: Abstraction has 601 states and 664 transitions. [2020-09-24 19:09:29,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:09:29,978 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 664 transitions. [2020-09-24 19:09:29,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 19:09:29,980 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:09:29,981 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:09:29,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:09:29,981 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:09:29,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:09:29,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1158940624, now seen corresponding path program 1 times [2020-09-24 19:09:29,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:09:29,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146908065] [2020-09-24 19:09:29,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:09:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:30,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:31,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:31,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-09-24 19:09:31,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:31,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:09:31,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:31,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:09:31,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-24 19:09:31,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:09:31,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:31,315 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:09:31,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:09:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:31,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:31,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:31,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:09:31,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:31,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 19:09:31,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:31,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:31,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:31,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:31,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:31,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:09:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:31,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:31,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:31,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:31,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:31,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:31,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:31,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:31,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:31,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:31,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:31,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:09:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:31,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:31,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:31,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:31,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:31,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:31,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:31,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:31,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:31,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:31,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:31,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:09:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:31,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:31,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:31,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:31,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:31,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:09:31,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:31,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:31,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:31,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:31,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:31,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:09:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:31,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:31,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:31,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:31,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:31,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:31,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:31,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:31,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:31,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:31,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:31,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 19:09:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:31,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:31,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:31,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:09:31,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:31,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:31,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:31,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:31,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:31,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:31,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:31,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:09:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:31,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:31,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:31,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:09:31,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:31,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:31,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:31,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:31,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:31,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:31,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:31,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:09:31,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:31,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:31,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:31,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:09:31,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:31,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 19:09:31,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:31,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:09:31,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:09:31,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:09:31,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:31,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:09:31,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:31,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:31,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:31,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:09:31,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:31,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 19:09:31,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:31,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:09:31,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:31,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:09:31,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:31,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:09:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:31,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:31,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:31,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:09:31,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:31,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:09:31,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:31,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:31,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:31,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:31,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:31,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:09:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:31,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:31,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:31,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:31,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:31,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:09:31,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:31,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:31,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 19:09:31,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:31,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:31,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 19:09:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:31,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:31,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:31,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:31,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:31,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:31,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:31,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:31,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 19:09:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:31,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:31,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:31,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:31,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:31,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:31,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:31,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:31,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:31,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:31,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:31,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 19:09:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:31,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:31,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:31,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:31,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:31,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:31,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:31,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:31,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:31,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:31,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:31,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:09:31,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1146908065] [2020-09-24 19:09:31,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:09:31,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:09:31,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63598192] [2020-09-24 19:09:31,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:09:31,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:09:31,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:09:31,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:09:31,849 INFO L87 Difference]: Start difference. First operand 601 states and 664 transitions. Second operand 11 states. [2020-09-24 19:09:33,105 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:33,390 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:09:33,677 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:09:34,025 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:34,319 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:09:34,596 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:35,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:09:35,870 INFO L93 Difference]: Finished difference Result 1432 states and 1747 transitions. [2020-09-24 19:09:35,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 19:09:35,871 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 204 [2020-09-24 19:09:35,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:09:35,878 INFO L225 Difference]: With dead ends: 1432 [2020-09-24 19:09:35,878 INFO L226 Difference]: Without dead ends: 941 [2020-09-24 19:09:35,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-09-24 19:09:35,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2020-09-24 19:09:35,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 606. [2020-09-24 19:09:35,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 606 states. [2020-09-24 19:09:35,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 669 transitions. [2020-09-24 19:09:35,972 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 669 transitions. Word has length 204 [2020-09-24 19:09:35,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:09:35,973 INFO L479 AbstractCegarLoop]: Abstraction has 606 states and 669 transitions. [2020-09-24 19:09:35,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:09:35,973 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 669 transitions. [2020-09-24 19:09:35,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-09-24 19:09:35,976 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:09:35,976 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:09:35,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:09:35,976 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:09:35,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:09:35,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1099817046, now seen corresponding path program 1 times [2020-09-24 19:09:35,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:09:35,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855421903] [2020-09-24 19:09:35,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:09:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:36,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:36,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:37,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:37,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-09-24 19:09:37,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:09:37,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1036 [2020-09-24 19:09:37,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:37,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 19:09:37,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 206 [2020-09-24 19:09:37,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:09:37,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:37,436 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:09:37,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:09:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:37,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:37,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:37,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:09:37,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:37,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 19:09:37,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:37,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:37,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:37,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:37,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:37,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:09:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:37,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:37,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:37,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:37,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:37,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:09:37,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:37,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:37,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:37,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:37,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:37,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:09:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:37,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:37,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:37,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:37,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:37,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:09:37,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:37,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:37,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:37,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:37,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:37,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:09:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:37,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:37,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:37,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:37,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:37,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:37,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:37,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:37,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:37,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:37,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:37,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:09:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:37,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:37,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:37,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:37,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:37,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:09:37,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:37,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:37,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:37,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:37,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:37,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 19:09:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:37,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:37,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:37,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:09:37,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:37,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:37,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:37,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:37,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:37,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:37,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:37,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:09:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:37,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:37,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:37,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:09:37,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:37,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:37,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:37,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:37,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:37,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:37,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:37,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:09:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:37,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:37,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:37,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-24 19:09:37,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:37,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-24 19:09:37,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:37,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 19:09:37,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:37,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 19:09:37,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:37,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:09:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:37,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:37,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:37,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:09:37,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:37,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:37,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:37,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:37,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:37,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:37,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:37,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:09:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:37,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:37,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:37,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:09:37,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:37,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:37,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:37,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:37,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:37,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:37,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:37,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:09:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:37,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:37,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:37,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 19:09:37,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:37,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:09:37,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:37,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 19:09:37,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:37,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 19:09:37,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:37,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:09:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:37,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:37,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:37,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:09:37,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:37,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:09:37,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:37,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:09:37,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:37,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 19:09:37,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:37,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:09:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:37,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:37,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:37,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:37,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:37,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:09:37,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:37,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:09:37,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:37,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:09:37,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:37,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-24 19:09:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:37,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:37,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:37,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:37,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:37,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:09:37,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:37,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:09:37,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:37,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:09:37,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:37,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-09-24 19:09:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:37,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:37,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:37,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:37,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:37,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:37,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:37,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:37,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:37,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:37,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:37,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-24 19:09:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:37,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:37,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:37,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:37,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:37,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:37,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:37,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:37,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:37,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:37,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:38,063 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:09:38,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855421903] [2020-09-24 19:09:38,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:09:38,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-09-24 19:09:38,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330406450] [2020-09-24 19:09:38,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 19:09:38,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:09:38,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 19:09:38,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-09-24 19:09:38,066 INFO L87 Difference]: Start difference. First operand 606 states and 669 transitions. Second operand 16 states. [2020-09-24 19:09:39,185 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:40,976 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:09:41,345 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:09:41,719 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:09:42,066 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:09:42,381 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:09:42,699 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:09:43,007 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:09:43,344 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:09:43,668 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:09:43,992 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:09:44,317 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:09:44,651 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:09:44,963 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:09:45,283 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:09:45,581 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:09:45,906 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:09:46,207 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:09:46,596 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:09:47,112 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191