/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 23:16:12,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 23:16:12,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 23:16:13,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 23:16:13,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 23:16:13,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 23:16:13,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 23:16:13,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 23:16:13,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 23:16:13,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 23:16:13,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 23:16:13,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 23:16:13,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 23:16:13,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 23:16:13,035 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 23:16:13,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 23:16:13,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 23:16:13,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 23:16:13,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 23:16:13,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 23:16:13,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 23:16:13,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 23:16:13,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 23:16:13,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 23:16:13,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 23:16:13,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 23:16:13,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 23:16:13,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 23:16:13,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 23:16:13,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 23:16:13,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 23:16:13,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 23:16:13,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 23:16:13,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 23:16:13,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 23:16:13,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 23:16:13,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 23:16:13,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 23:16:13,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 23:16:13,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 23:16:13,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 23:16:13,081 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 [2020-10-27 23:16:13,110 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 23:16:13,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 23:16:13,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 23:16:13,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 23:16:13,112 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 23:16:13,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 23:16:13,112 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 23:16:13,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 23:16:13,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 23:16:13,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 23:16:13,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 23:16:13,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 23:16:13,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 23:16:13,114 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 23:16:13,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 23:16:13,114 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 23:16:13,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 23:16:13,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 23:16:13,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 23:16:13,115 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 23:16:13,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 23:16:13,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:16:13,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 23:16:13,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 23:16:13,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 23:16:13,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 23:16:13,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 23:16:13,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 23:16:13,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 23:16:13,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 23:16:13,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 23:16:13,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 23:16:13,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 23:16:13,533 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 23:16:13,534 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 23:16:13,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-10-27 23:16:13,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a6dc8993/36d780d418a2463cb441e745b36b44b1/FLAGed92a70ec [2020-10-27 23:16:14,445 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 23:16:14,446 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-10-27 23:16:14,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a6dc8993/36d780d418a2463cb441e745b36b44b1/FLAGed92a70ec [2020-10-27 23:16:14,698 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a6dc8993/36d780d418a2463cb441e745b36b44b1 [2020-10-27 23:16:14,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 23:16:14,707 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 23:16:14,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 23:16:14,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 23:16:14,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 23:16:14,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:16:14" (1/1) ... [2020-10-27 23:16:14,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44d7913b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:14, skipping insertion in model container [2020-10-27 23:16:14,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:16:14" (1/1) ... [2020-10-27 23:16:14,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 23:16:14,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 23:16:15,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:16:15,067 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 23:16:15,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:16:15,265 INFO L208 MainTranslator]: Completed translation [2020-10-27 23:16:15,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:15 WrapperNode [2020-10-27 23:16:15,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 23:16:15,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 23:16:15,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 23:16:15,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 23:16:15,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:15" (1/1) ... [2020-10-27 23:16:15,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:15" (1/1) ... [2020-10-27 23:16:15,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:15" (1/1) ... [2020-10-27 23:16:15,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:15" (1/1) ... [2020-10-27 23:16:15,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:15" (1/1) ... [2020-10-27 23:16:15,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:15" (1/1) ... [2020-10-27 23:16:15,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:15" (1/1) ... [2020-10-27 23:16:15,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 23:16:15,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 23:16:15,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 23:16:15,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 23:16:15,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:15" (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 [2020-10-27 23:16:15,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 23:16:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 23:16:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 23:16:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 23:16:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2020-10-27 23:16:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2020-10-27 23:16:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2020-10-27 23:16:15,517 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2020-10-27 23:16:15,517 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2020-10-27 23:16:15,517 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2020-10-27 23:16:15,517 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2020-10-27 23:16:15,517 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2020-10-27 23:16:15,517 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 23:16:15,518 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2020-10-27 23:16:15,518 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2020-10-27 23:16:15,518 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2020-10-27 23:16:15,518 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2020-10-27 23:16:15,540 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2020-10-27 23:16:15,540 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 23:16:15,540 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 23:16:15,540 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 23:16:15,540 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 23:16:15,540 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 23:16:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 23:16:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 23:16:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 23:16:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 23:16:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 23:16:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 23:16:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 23:16:15,542 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 23:16:15,542 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2020-10-27 23:16:15,542 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2020-10-27 23:16:15,542 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2020-10-27 23:16:15,542 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2020-10-27 23:16:15,542 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2020-10-27 23:16:15,542 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2020-10-27 23:16:15,543 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2020-10-27 23:16:15,543 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2020-10-27 23:16:15,543 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 23:16:15,543 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2020-10-27 23:16:15,543 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2020-10-27 23:16:15,543 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2020-10-27 23:16:15,543 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2020-10-27 23:16:15,544 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2020-10-27 23:16:15,544 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 23:16:15,544 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 23:16:15,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 23:16:15,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 23:16:15,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 23:16:15,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 23:16:15,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 23:16:15,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 23:16:16,762 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 23:16:16,763 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 23:16:16,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:16:16 BoogieIcfgContainer [2020-10-27 23:16:16,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 23:16:16,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 23:16:16,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 23:16:16,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 23:16:16,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:16:14" (1/3) ... [2020-10-27 23:16:16,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6758439e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:16:16, skipping insertion in model container [2020-10-27 23:16:16,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:16:15" (2/3) ... [2020-10-27 23:16:16,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6758439e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:16:16, skipping insertion in model container [2020-10-27 23:16:16,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:16:16" (3/3) ... [2020-10-27 23:16:16,777 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-10-27 23:16:16,788 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 23:16:16,793 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 23:16:16,805 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 23:16:16,835 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 23:16:16,836 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 23:16:16,836 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 23:16:16,836 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 23:16:16,836 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 23:16:16,837 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 23:16:16,837 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 23:16:16,837 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 23:16:16,862 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-10-27 23:16:16,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-27 23:16:16,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:16:16,874 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] [2020-10-27 23:16:16,874 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:16:16,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:16:16,881 INFO L82 PathProgramCache]: Analyzing trace with hash 468525090, now seen corresponding path program 1 times [2020-10-27 23:16:16,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:16:16,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [922606404] [2020-10-27 23:16:16,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:16:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:17,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:17,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:17,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:17,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:17,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:17,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:17,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:18,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:19,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:19,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-27 23:16:19,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 23:16:19,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2782 [2020-10-27 23:16:19,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:16:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-27 23:16:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:16:19,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 23:16:20,582 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:16:20,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:16:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:20,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:20,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:20,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:20,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:16:20,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:20,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:20,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:20,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:16:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:20,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:20,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:20,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:20,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:20,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:20,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:20,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:16:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:20,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:20,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:20,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:20,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:20,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:20,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:20,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:20,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:20,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:20,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:16:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:20,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:20,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:16:20,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:20,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 23:16:20,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:20,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:20,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:20,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:20,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 23:16:20,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:20,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:20,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:20,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:20,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:20,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:16:20,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:20,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:20,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:20,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:20,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:20,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:16:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:20,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:20,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:16:20,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:16:20,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 23:16:20,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:20,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:20,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 23:16:20,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:20,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:20,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:20,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:20,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:20,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:20,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:20,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:20,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:20,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:20,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:20,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:20,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:21,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 23:16:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:21,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:21,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:21,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:21,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:21,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:21,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:16:21,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:16:21,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-27 23:16:21,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:21,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:21,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 23:16:21,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:21,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:16:21,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:21,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:21,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:21,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:21,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:21,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:16:21,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:21,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:21,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:21,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:21,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:16:21,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:16:21,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [922606404] [2020-10-27 23:16:21,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:16:21,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:16:21,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707945963] [2020-10-27 23:16:21,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:16:21,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:16:21,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:16:21,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:16:21,245 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 11 states. [2020-10-27 23:16:21,876 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-27 23:16:22,117 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-27 23:16:23,619 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:16:24,106 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:16:24,345 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:16:26,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:16:26,645 INFO L93 Difference]: Finished difference Result 465 states and 715 transitions. [2020-10-27 23:16:26,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 23:16:26,650 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 72 [2020-10-27 23:16:26,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:16:26,670 INFO L225 Difference]: With dead ends: 465 [2020-10-27 23:16:26,671 INFO L226 Difference]: Without dead ends: 242 [2020-10-27 23:16:26,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-10-27 23:16:26,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-27 23:16:26,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-10-27 23:16:26,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-27 23:16:26,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 346 transitions. [2020-10-27 23:16:26,785 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 346 transitions. Word has length 72 [2020-10-27 23:16:26,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:16:26,786 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 346 transitions. [2020-10-27 23:16:26,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:16:26,786 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 346 transitions. [2020-10-27 23:16:26,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-27 23:16:26,791 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:16:26,791 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-27 23:16:26,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 23:16:26,792 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:16:26,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:16:26,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1970301302, now seen corresponding path program 1 times [2020-10-27 23:16:26,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:16:26,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662532695] [2020-10-27 23:16:26,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:16:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:26,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:26,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:27,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:29,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:31,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:31,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-27 23:16:31,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:16:31,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-27 23:16:31,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:31,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:16:31,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-27 23:16:31,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:16:31,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:32,336 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:16:32,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:16:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:32,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:32,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:32,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:32,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:32,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:16:32,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:32,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:32,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:32,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:32,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:32,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:16:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:32,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:32,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:32,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:32,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:32,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:32,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:32,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:32,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:32,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:32,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:32,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:16:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:32,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:32,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:32,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:32,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:32,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:16:32,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:32,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:32,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:32,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:32,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:32,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:16:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:32,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:32,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:32,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:16:32,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:32,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:16:32,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:32,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:32,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:32,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:32,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:32,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:32,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:32,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:32,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:32,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:32,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:32,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:32,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:32,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:32,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:16:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:32,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:32,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:32,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:16:32,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:32,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:16:32,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:32,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:32,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:32,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:32,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:32,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:32,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:32,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:32,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:32,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:32,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:32,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:32,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:32,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:32,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:32,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:32,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 23:16:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:32,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:32,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:32,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:16:32,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:32,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 23:16:32,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:32,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:32,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:32,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:32,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:32,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:32,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:32,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:32,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:32,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:32,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:32,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:32,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:32,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:32,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:32,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:16:32,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:16:32,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:32,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:32,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:32,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 23:16:32,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:32,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:16:32,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:32,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:32,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:32,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:32,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:32,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:32,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:32,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:32,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:32,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:32,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:16:32,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:32,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:32,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:32,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:32,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:32,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 23:16:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:32,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:32,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:32,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:32,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:32,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:32,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:32,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:32,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:32,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:32,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:32,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 23:16:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:32,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:32,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:32,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:32,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:32,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:32,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:32,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:32,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:32,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:32,875 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 23:16:32,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662532695] [2020-10-27 23:16:32,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:16:32,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:16:32,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575599833] [2020-10-27 23:16:32,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:16:32,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:16:32,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:16:32,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:16:32,879 INFO L87 Difference]: Start difference. First operand 242 states and 346 transitions. Second operand 13 states. [2020-10-27 23:16:33,397 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:16:33,668 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:16:33,816 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:16:34,241 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:16:34,422 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:16:34,986 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:16:35,230 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:16:35,868 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:16:36,346 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:16:38,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:16:38,207 INFO L93 Difference]: Finished difference Result 465 states and 663 transitions. [2020-10-27 23:16:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 23:16:38,208 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 94 [2020-10-27 23:16:38,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:16:38,213 INFO L225 Difference]: With dead ends: 465 [2020-10-27 23:16:38,214 INFO L226 Difference]: Without dead ends: 247 [2020-10-27 23:16:38,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:16:38,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2020-10-27 23:16:38,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2020-10-27 23:16:38,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-10-27 23:16:38,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 350 transitions. [2020-10-27 23:16:38,265 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 350 transitions. Word has length 94 [2020-10-27 23:16:38,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:16:38,266 INFO L481 AbstractCegarLoop]: Abstraction has 247 states and 350 transitions. [2020-10-27 23:16:38,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:16:38,266 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 350 transitions. [2020-10-27 23:16:38,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-27 23:16:38,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:16:38,269 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-27 23:16:38,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 23:16:38,270 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:16:38,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:16:38,270 INFO L82 PathProgramCache]: Analyzing trace with hash -818809616, now seen corresponding path program 1 times [2020-10-27 23:16:38,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:16:38,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95412540] [2020-10-27 23:16:38,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:16:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:38,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:38,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:38,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:41,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:43,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:43,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-27 23:16:43,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:16:43,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-27 23:16:43,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:43,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:16:43,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-27 23:16:43,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:16:43,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:43,858 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:16:43,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:16:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:43,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:43,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:43,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:43,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:43,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:16:43,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:43,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:43,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:43,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:43,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:43,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:16:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:43,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:43,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:43,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:43,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:43,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:43,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:43,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:43,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:43,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:43,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:43,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:16:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:43,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:43,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:43,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:43,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:43,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:16:43,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:43,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:43,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:43,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:43,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:43,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:16:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:43,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:43,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:43,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:16:43,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:43,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:16:43,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:43,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:43,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:43,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:43,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:43,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:43,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:43,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:43,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:43,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:43,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:43,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:43,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:43,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:43,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:43,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:44,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:16:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:44,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:44,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:44,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:16:44,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:44,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:16:44,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:44,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:44,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:44,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:44,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:44,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:44,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:44,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:44,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:44,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:44,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:44,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:44,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:44,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:44,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:44,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:44,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 23:16:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:44,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:44,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:44,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:16:44,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:44,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:16:44,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:44,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:44,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:44,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:44,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:44,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:44,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:44,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:44,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:44,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:44,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:44,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:44,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:44,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:44,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:44,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:44,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:16:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:44,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:44,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:44,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 23:16:44,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:44,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:16:44,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:44,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:44,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:44,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:44,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:44,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:44,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:44,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:44,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:44,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:44,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:16:44,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:44,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:44,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:44,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:44,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:44,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 23:16:44,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:44,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:44,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:44,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:44,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:44,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:44,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:44,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:44,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:44,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:44,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:44,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 23:16:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:44,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:44,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:44,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:44,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:44,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:16:44,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:44,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:44,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:44,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:44,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:44,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 23:16:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:44,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:44,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:44,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:16:44,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:44,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:44,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:44,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:44,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:44,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:44,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:44,368 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 23:16:44,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [95412540] [2020-10-27 23:16:44,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:16:44,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:16:44,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099427089] [2020-10-27 23:16:44,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:16:44,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:16:44,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:16:44,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:16:44,372 INFO L87 Difference]: Start difference. First operand 247 states and 350 transitions. Second operand 13 states. [2020-10-27 23:16:44,930 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:16:45,190 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:16:45,342 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:16:45,825 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:16:46,020 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:16:46,617 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:16:46,848 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:16:47,649 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:16:48,141 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:16:49,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:16:49,978 INFO L93 Difference]: Finished difference Result 475 states and 674 transitions. [2020-10-27 23:16:49,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 23:16:49,979 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 102 [2020-10-27 23:16:49,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:16:49,982 INFO L225 Difference]: With dead ends: 475 [2020-10-27 23:16:49,982 INFO L226 Difference]: Without dead ends: 252 [2020-10-27 23:16:49,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:16:49,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-27 23:16:50,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-10-27 23:16:50,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-27 23:16:50,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 354 transitions. [2020-10-27 23:16:50,038 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 354 transitions. Word has length 102 [2020-10-27 23:16:50,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:16:50,038 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 354 transitions. [2020-10-27 23:16:50,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:16:50,039 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 354 transitions. [2020-10-27 23:16:50,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-27 23:16:50,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:16:50,041 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:16:50,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 23:16:50,042 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:16:50,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:16:50,042 INFO L82 PathProgramCache]: Analyzing trace with hash -781112090, now seen corresponding path program 1 times [2020-10-27 23:16:50,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:16:50,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146491156] [2020-10-27 23:16:50,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:16:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:50,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:50,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:50,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:50,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:55,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:55,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-27 23:16:55,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:16:55,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 23:16:55,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:55,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:16:55,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-27 23:16:55,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 23:16:55,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:55,552 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:16:55,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:16:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:55,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:55,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:55,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:55,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:55,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:16:55,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:55,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:55,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:55,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:55,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:55,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:16:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:55,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:55,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:55,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:55,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:55,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:16:55,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:55,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:55,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:55,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:55,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:55,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:16:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:55,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:55,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:55,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:55,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:55,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:16:55,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:55,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:55,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:55,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:55,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:55,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:16:55,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:55,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:55,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:55,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:16:55,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:55,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 23:16:55,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:55,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:55,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:55,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:55,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:55,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:55,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:55,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:55,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:55,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:55,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:16:55,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:55,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:55,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:55,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:55,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:55,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:16:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:55,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:55,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:55,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:16:55,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:55,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:16:55,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:55,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:16:55,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:55,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:16:55,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:55,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:55,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:55,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:55,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:55,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:55,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:16:55,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:55,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:55,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:55,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:55,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:55,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 23:16:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:55,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:55,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:55,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:16:55,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:55,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:16:55,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:55,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:16:55,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:55,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 23:16:55,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:55,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:55,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:55,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:55,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:55,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:55,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:55,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:55,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:55,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:55,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:55,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:55,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:16:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:55,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:55,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:55,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 23:16:55,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:55,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:16:55,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:55,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:16:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 23:16:55,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:16:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:56,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:16:56,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:56,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:56,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:56,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 23:16:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:16:56,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:56,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:56,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:16:56,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:56,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 23:16:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:16:56,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:56,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:56,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 23:16:56,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:56,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 23:16:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:16:56,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:56,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:56,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:16:56,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:56,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 23:16:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:16:56,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:16:56,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:16:56,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:16:56,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:16:56,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:16:56,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:16:56,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:16:56,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:16:56,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:16:56,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:16:56,102 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 23:16:56,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146491156] [2020-10-27 23:16:56,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:16:56,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:16:56,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51854325] [2020-10-27 23:16:56,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:16:56,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:16:56,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:16:56,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:16:56,105 INFO L87 Difference]: Start difference. First operand 252 states and 354 transitions. Second operand 12 states. [2020-10-27 23:16:56,578 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:16:56,859 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:16:57,000 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:16:57,187 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-27 23:16:57,924 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:16:58,104 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-27 23:16:58,310 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:16:58,460 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-27 23:16:58,598 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:16:59,301 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:16:59,547 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:16:59,774 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:17:00,010 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:17:02,003 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:17:03,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:17:03,403 INFO L93 Difference]: Finished difference Result 682 states and 954 transitions. [2020-10-27 23:17:03,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 23:17:03,404 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 110 [2020-10-27 23:17:03,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:17:03,410 INFO L225 Difference]: With dead ends: 682 [2020-10-27 23:17:03,410 INFO L226 Difference]: Without dead ends: 454 [2020-10-27 23:17:03,412 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-10-27 23:17:03,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2020-10-27 23:17:03,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 436. [2020-10-27 23:17:03,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2020-10-27 23:17:03,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 614 transitions. [2020-10-27 23:17:03,492 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 614 transitions. Word has length 110 [2020-10-27 23:17:03,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:17:03,493 INFO L481 AbstractCegarLoop]: Abstraction has 436 states and 614 transitions. [2020-10-27 23:17:03,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:17:03,493 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 614 transitions. [2020-10-27 23:17:03,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-27 23:17:03,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:17:03,496 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:17:03,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 23:17:03,497 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:17:03,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:17:03,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1886090793, now seen corresponding path program 1 times [2020-10-27 23:17:03,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:17:03,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [918616275] [2020-10-27 23:17:03,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:17:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:03,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:03,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:03,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:04,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:08,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:08,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 23:17:08,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:17:08,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 23:17:08,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:08,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:17:08,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 23:17:08,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 23:17:08,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:09,080 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:17:09,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:17:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:09,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:09,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:09,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:09,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:09,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:17:09,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:09,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:09,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:09,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:09,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:09,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:17:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:09,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:09,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:09,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:09,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:09,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:09,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:09,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:09,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:09,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:09,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:09,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:17:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:09,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:09,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:09,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:09,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:09,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:17:09,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:09,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:09,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:09,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:09,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:09,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:17:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:09,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:09,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:09,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:17:09,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:09,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:17:09,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:09,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:09,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:09,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:09,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:09,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:09,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:09,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:09,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:09,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:09,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:09,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:09,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:09,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:09,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:17:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:09,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:09,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:09,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:17:09,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:09,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:17:09,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:09,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:09,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:09,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:09,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:09,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:09,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:09,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:09,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:09,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:09,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:09,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:09,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:09,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:09,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:09,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:17:09,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 23:17:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:09,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:09,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:09,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:17:09,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:09,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:17:09,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:17:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:17:09,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:09,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:09,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:09,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:09,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:09,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:09,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:09,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:09,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:09,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:09,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:09,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:09,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:17:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:09,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:09,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:09,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 23:17:09,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:09,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:17:09,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:09,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:17:09,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:09,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 23:17:09,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:09,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:09,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:09,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:09,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:09,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:09,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:09,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:09,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:09,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 23:17:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:09,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:09,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:09,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:09,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:09,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:09,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:09,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:09,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:09,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:09,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:09,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:17:09,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:09,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:09,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:09,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:09,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:09,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:17:09,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:09,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:09,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 23:17:09,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:09,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:09,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 23:17:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:09,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:09,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:09,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:09,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:09,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:09,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:09,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:09,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:17:09,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:09,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:09,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 23:17:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:09,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:09,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:09,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:09,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:09,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:09,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:09,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:09,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:17:09,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:09,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:09,589 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 23:17:09,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [918616275] [2020-10-27 23:17:09,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:17:09,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:17:09,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661038098] [2020-10-27 23:17:09,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:17:09,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:17:09,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:17:09,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:17:09,594 INFO L87 Difference]: Start difference. First operand 436 states and 614 transitions. Second operand 12 states. [2020-10-27 23:17:10,099 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:17:10,383 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:17:10,525 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:17:11,033 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:17:11,377 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-27 23:17:12,026 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:17:12,364 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:17:12,610 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:17:12,825 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:17:13,068 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:17:15,363 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:17:15,649 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-27 23:17:15,802 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-27 23:17:17,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:17:17,191 INFO L93 Difference]: Finished difference Result 1205 states and 1699 transitions. [2020-10-27 23:17:17,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 23:17:17,195 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 111 [2020-10-27 23:17:17,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:17:17,206 INFO L225 Difference]: With dead ends: 1205 [2020-10-27 23:17:17,207 INFO L226 Difference]: Without dead ends: 793 [2020-10-27 23:17:17,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-10-27 23:17:17,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2020-10-27 23:17:17,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 786. [2020-10-27 23:17:17,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 786 states. [2020-10-27 23:17:17,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1109 transitions. [2020-10-27 23:17:17,371 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1109 transitions. Word has length 111 [2020-10-27 23:17:17,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:17:17,372 INFO L481 AbstractCegarLoop]: Abstraction has 786 states and 1109 transitions. [2020-10-27 23:17:17,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:17:17,372 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1109 transitions. [2020-10-27 23:17:17,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-27 23:17:17,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:17:17,375 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:17:17,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 23:17:17,375 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:17:17,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:17:17,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1468122557, now seen corresponding path program 1 times [2020-10-27 23:17:17,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:17:17,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [908978035] [2020-10-27 23:17:17,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:17:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:17,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:17,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:17,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:17,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:17,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:17,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:18,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:19,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:19,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:22,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:22,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-27 23:17:22,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 23:17:22,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 23:17:22,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:22,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:17:22,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-27 23:17:22,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:17:22,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:23,013 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:17:23,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:17:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:23,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:23,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:23,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:23,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:23,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 23:17:23,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:23,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:23,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:23,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:23,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:17:23,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:17:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:23,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:23,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:23,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:23,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:23,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:23,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:23,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:23,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:23,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:23,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:17:23,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:17:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:23,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:23,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:23,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:23,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:23,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:23,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:23,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:23,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:23,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:23,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:23,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:17:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:23,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:23,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:23,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:17:23,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:23,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:17:23,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:23,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:23,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:23,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:23,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:17:23,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:23,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:23,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:23,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:23,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:23,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:23,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:23,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:23,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:23,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:23,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:23,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:17:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:23,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:23,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:23,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:17:23,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:23,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:17:23,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:23,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:23,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:23,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:23,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:23,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:23,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:23,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:23,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:23,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:23,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:23,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:23,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:23,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:23,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:23,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:23,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 23:17:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:23,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:23,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:23,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:17:23,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:23,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:17:23,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:23,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:23,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:23,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:23,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:23,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:23,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:23,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:23,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:23,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:23,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:17:23,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:23,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:23,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:23,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:23,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:23,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:17:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:23,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:23,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:23,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 23:17:23,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:23,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:17:23,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:23,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:23,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:23,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:23,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:23,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:23,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:23,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:23,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:23,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:23,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:23,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:23,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:23,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:23,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:23,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:23,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 23:17:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:23,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:23,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:23,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:23,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:23,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:23,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:23,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:23,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:23,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:23,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:23,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 23:17:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:23,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:23,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:23,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:23,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:23,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:17:23,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:23,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:17:23,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 23:17:23,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:17:23,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:23,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 23:17:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:23,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:23,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:23,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:23,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:23,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:17:23,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:17:23,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:23,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 23:17:23,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:17:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:23,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:23,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:23,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:23,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:23,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:17:23,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:23,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:23,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:17:23,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:23,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:23,678 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 23:17:23,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [908978035] [2020-10-27 23:17:23,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:17:23,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:17:23,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867702169] [2020-10-27 23:17:23,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:17:23,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:17:23,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:17:23,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:17:23,680 INFO L87 Difference]: Start difference. First operand 786 states and 1109 transitions. Second operand 14 states. [2020-10-27 23:17:24,414 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 23:17:25,021 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:17:25,390 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:17:25,720 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:17:25,878 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:17:26,391 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:17:26,586 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:17:27,291 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:17:27,543 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:17:28,235 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:17:30,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:17:30,418 INFO L93 Difference]: Finished difference Result 1429 states and 2005 transitions. [2020-10-27 23:17:30,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 23:17:30,419 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 112 [2020-10-27 23:17:30,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:17:30,425 INFO L225 Difference]: With dead ends: 1429 [2020-10-27 23:17:30,425 INFO L226 Difference]: Without dead ends: 629 [2020-10-27 23:17:30,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=165, Invalid=387, Unknown=0, NotChecked=0, Total=552 [2020-10-27 23:17:30,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2020-10-27 23:17:30,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 629. [2020-10-27 23:17:30,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2020-10-27 23:17:30,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 882 transitions. [2020-10-27 23:17:30,514 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 882 transitions. Word has length 112 [2020-10-27 23:17:30,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:17:30,514 INFO L481 AbstractCegarLoop]: Abstraction has 629 states and 882 transitions. [2020-10-27 23:17:30,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 23:17:30,514 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 882 transitions. [2020-10-27 23:17:30,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-27 23:17:30,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:17:30,517 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:17:30,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 23:17:30,517 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:17:30,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:17:30,518 INFO L82 PathProgramCache]: Analyzing trace with hash 2004713278, now seen corresponding path program 1 times [2020-10-27 23:17:30,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:17:30,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [376066564] [2020-10-27 23:17:30,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:17:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:30,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:30,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:30,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:30,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:30,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:31,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:35,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:35,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 23:17:35,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 23:17:35,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 23:17:35,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:35,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:17:35,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-27 23:17:35,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 23:17:35,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:35,975 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:17:35,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:17:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:35,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:35,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:35,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:35,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:35,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:17:35,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:35,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:35,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:35,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:35,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:35,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:17:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:35,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:35,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:35,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:35,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:35,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:35,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:35,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:35,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:36,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:36,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:17:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:36,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:36,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:36,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:36,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:36,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:36,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:36,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:36,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:36,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:36,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:36,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:17:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:36,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:36,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:36,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:17:36,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:36,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:17:36,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:36,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:17:36,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:36,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 23:17:36,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:36,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:36,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:36,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:36,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:36,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:36,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:17:36,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:36,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:36,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:36,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:36,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:36,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:17:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:36,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:36,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:36,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:36,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:36,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:17:36,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:17:36,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-27 23:17:36,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:17:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 23:17:36,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:36,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:36,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:36,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:36,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:36,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:36,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:17:36,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:36,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:36,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:36,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:36,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:36,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 23:17:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:36,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:36,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:36,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:17:36,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:36,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:17:36,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:36,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:17:36,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:36,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 23:17:36,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:36,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:36,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:36,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:36,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:36,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:36,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:36,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:36,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:36,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:36,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:36,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:36,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:17:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:36,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:36,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:36,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 23:17:36,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:36,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 23:17:36,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:36,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:17:36,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:17:36,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 23:17:36,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:36,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:36,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:36,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:36,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:36,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:36,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:36,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:36,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:17:36,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:36,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:17:36,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:36,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 23:17:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:36,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:36,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:36,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:36,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:36,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:17:36,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:36,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:17:36,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:36,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:17:36,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:36,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:17:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:36,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:36,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:36,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:36,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:36,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:36,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:36,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:36,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 23:17:36,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:36,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:36,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 23:17:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:36,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:36,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:36,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:36,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:36,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:36,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:36,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:36,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:17:36,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:36,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:36,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 23:17:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:36,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:36,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:36,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:36,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:36,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:36,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:36,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:36,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:17:36,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:36,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:36,729 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 23:17:36,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [376066564] [2020-10-27 23:17:36,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:17:36,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-27 23:17:36,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438133939] [2020-10-27 23:17:36,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 23:17:36,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:17:36,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 23:17:36,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-10-27 23:17:36,732 INFO L87 Difference]: Start difference. First operand 629 states and 882 transitions. Second operand 18 states. [2020-10-27 23:17:37,292 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:17:38,680 WARN L193 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 164 [2020-10-27 23:17:39,114 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-27 23:17:39,613 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-27 23:17:39,906 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-27 23:17:40,286 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-27 23:17:41,011 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-27 23:17:41,361 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-27 23:17:42,545 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-27 23:17:43,074 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-27 23:17:43,653 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-27 23:17:44,251 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:17:45,616 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-27 23:17:45,920 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-27 23:17:46,094 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-27 23:17:46,321 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-27 23:17:46,761 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-27 23:17:46,995 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-27 23:17:48,448 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-27 23:17:49,013 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-27 23:17:49,995 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-27 23:17:50,504 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-27 23:17:51,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:17:51,124 INFO L93 Difference]: Finished difference Result 1427 states and 1989 transitions. [2020-10-27 23:17:51,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-27 23:17:51,125 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 111 [2020-10-27 23:17:51,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:17:51,130 INFO L225 Difference]: With dead ends: 1427 [2020-10-27 23:17:51,131 INFO L226 Difference]: Without dead ends: 822 [2020-10-27 23:17:51,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=424, Invalid=1382, Unknown=0, NotChecked=0, Total=1806 [2020-10-27 23:17:51,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2020-10-27 23:17:51,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 789. [2020-10-27 23:17:51,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2020-10-27 23:17:51,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1090 transitions. [2020-10-27 23:17:51,274 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1090 transitions. Word has length 111 [2020-10-27 23:17:51,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:17:51,275 INFO L481 AbstractCegarLoop]: Abstraction has 789 states and 1090 transitions. [2020-10-27 23:17:51,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 23:17:51,275 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1090 transitions. [2020-10-27 23:17:51,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-27 23:17:51,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:17:51,279 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:17:51,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 23:17:51,279 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:17:51,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:17:51,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1871715286, now seen corresponding path program 1 times [2020-10-27 23:17:51,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:17:51,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690453623] [2020-10-27 23:17:51,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:17:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:51,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:51,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:51,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:51,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:51,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:51,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:52,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:56,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:56,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-27 23:17:56,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 23:17:56,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 23:17:56,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:56,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:17:56,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-27 23:17:56,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 23:17:56,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:56,838 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:17:56,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:17:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:56,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:56,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:56,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:56,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:56,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:17:56,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:56,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:56,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:56,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:56,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:56,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:17:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:56,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:56,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:56,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:56,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:56,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:56,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:56,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:56,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:56,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:56,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:56,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:17:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:56,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:56,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:56,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:56,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:56,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:56,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:56,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:56,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:56,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:56,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:56,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:17:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:56,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:56,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:56,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:17:56,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:56,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:17:56,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:17:56,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:56,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 23:17:56,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:56,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:56,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:56,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:56,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:56,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:56,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:56,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:56,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:56,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:56,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:56,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:57,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:17:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:57,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:57,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:57,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:57,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:57,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:17:57,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:17:57,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 23:17:57,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:57,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:17:57,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:57,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 23:17:57,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:57,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:57,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:57,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:57,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:57,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:57,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:57,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:57,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:57,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:57,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:57,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:57,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 23:17:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:57,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:57,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:57,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:17:57,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:57,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:17:57,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:57,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:17:57,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:57,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 23:17:57,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:57,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:57,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:57,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:57,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:57,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:57,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:57,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:57,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:57,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:57,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:57,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:57,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:17:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:57,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:57,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:57,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 23:17:57,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:57,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:17:57,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:57,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:17:57,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:17:57,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 23:17:57,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:57,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:17:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:57,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:57,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:57,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:57,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:57,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:57,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:57,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:17:57,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:57,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:17:57,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:57,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 23:17:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:57,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:57,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:57,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:17:57,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:57,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:17:57,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:57,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:17:57,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:17:57,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:17:57,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:57,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 23:17:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:57,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:57,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:57,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:17:57,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:57,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:57,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:57,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:57,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 23:17:57,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:57,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:57,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 23:17:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:57,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:57,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:57,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:57,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:57,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:57,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:57,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:57,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:17:57,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:57,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:57,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:17:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:17:57,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:17:57,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:17:57,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:17:57,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:17:57,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:17:57,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:17:57,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:17:57,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:17:57,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:17:57,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:17:57,639 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 23:17:57,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690453623] [2020-10-27 23:17:57,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:17:57,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-27 23:17:57,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796054759] [2020-10-27 23:17:57,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 23:17:57,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:17:57,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 23:17:57,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-10-27 23:17:57,641 INFO L87 Difference]: Start difference. First operand 789 states and 1090 transitions. Second operand 18 states. [2020-10-27 23:17:58,305 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-27 23:17:59,877 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-27 23:18:00,330 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2020-10-27 23:18:00,872 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2020-10-27 23:18:01,209 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 23:18:01,603 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2020-10-27 23:18:02,375 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2020-10-27 23:18:02,722 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 23:18:03,713 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 101 [2020-10-27 23:18:04,222 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-27 23:18:04,713 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-27 23:18:05,319 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:18:06,825 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:18:07,156 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 23:18:07,347 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-27 23:18:07,579 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-27 23:18:08,042 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 23:18:08,278 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-27 23:18:09,725 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 100 [2020-10-27 23:18:10,217 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 101 [2020-10-27 23:18:11,127 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-27 23:18:11,564 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-27 23:18:12,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:18:12,188 INFO L93 Difference]: Finished difference Result 1460 states and 2025 transitions. [2020-10-27 23:18:12,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-27 23:18:12,189 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 112 [2020-10-27 23:18:12,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:18:12,195 INFO L225 Difference]: With dead ends: 1460 [2020-10-27 23:18:12,195 INFO L226 Difference]: Without dead ends: 843 [2020-10-27 23:18:12,198 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=424, Invalid=1382, Unknown=0, NotChecked=0, Total=1806 [2020-10-27 23:18:12,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2020-10-27 23:18:12,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 792. [2020-10-27 23:18:12,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 792 states. [2020-10-27 23:18:12,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1087 transitions. [2020-10-27 23:18:12,318 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1087 transitions. Word has length 112 [2020-10-27 23:18:12,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:18:12,320 INFO L481 AbstractCegarLoop]: Abstraction has 792 states and 1087 transitions. [2020-10-27 23:18:12,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 23:18:12,320 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1087 transitions. [2020-10-27 23:18:12,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-27 23:18:12,324 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:18:12,324 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:18:12,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 23:18:12,324 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:18:12,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:18:12,325 INFO L82 PathProgramCache]: Analyzing trace with hash 648342501, now seen corresponding path program 1 times [2020-10-27 23:18:12,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:18:12,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282376107] [2020-10-27 23:18:12,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:18:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:12,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:12,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:12,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:17,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:17,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-27 23:18:17,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:18:17,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-27 23:18:17,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:17,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 23:18:17,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 23:18:17,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:18:17,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:17,904 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:18:17,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:18:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:17,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:17,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:17,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:17,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:17,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:18:17,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:17,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:17,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:17,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:17,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:17,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:18:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:17,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:17,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:17,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:17,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:17,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:18:17,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:17,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:18:17,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:17,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:18:17,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:17,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:18:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:17,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:17,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:17,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:17,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:17,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:17,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:17,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:18:17,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 23:18:17,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:18:17,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:18,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 23:18:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:18,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:18,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:18,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:18:18,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:18,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:18:18,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:18,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:18,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 23:18:18,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:18,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:18,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:18,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:18,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:18,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:18,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:18,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:18,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:18,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:18,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:18,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:18,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:18,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 23:18:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:18,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:18,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:18,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:18:18,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:18,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:18:18,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:18,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:18,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 23:18:18,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:18,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:18,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:18,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:18,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:18,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:18,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:18,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:18,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:18,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:18,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:18,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:18,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:18,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 23:18:18,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:18,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:18,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:18,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:18:18,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:18,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:18:18,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:18,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:18,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 23:18:18,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:18,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:18,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:18,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:18,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:18,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:18,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:18,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:18,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:18,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:18,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:18,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:18,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:18,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:18:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:18,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:18,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:18,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 23:18:18,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:18,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:18:18,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:18,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:18,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-27 23:18:18,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:18,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:18,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:18,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:18,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:18,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:18,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:18,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:18,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:18,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:18,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:18:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:18,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:18,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:18,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:18,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:18,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:18,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:18,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:18,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:18,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:18,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:18,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:18:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:18,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:18,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:18,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:18,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:18,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:18,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:18,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:18,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 23:18:18,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:18,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:18,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 23:18:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:18,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:18,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:18,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:18,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:18,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:18,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:18,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:18,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:18:18,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:18,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:18,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 23:18:18,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:18,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:18,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:18,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:18,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:18,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:18,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:18,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:18,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:18:18,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:18,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:18,554 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 23:18:18,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282376107] [2020-10-27 23:18:18,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 23:18:18,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 23:18:18,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38907189] [2020-10-27 23:18:18,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 23:18:18,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:18:18,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 23:18:18,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-10-27 23:18:18,555 INFO L87 Difference]: Start difference. First operand 792 states and 1087 transitions. Second operand 16 states. [2020-10-27 23:18:19,130 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:18:19,767 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:18:20,270 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:18:20,688 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:18:21,001 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:18:21,162 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:18:21,786 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:18:22,001 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:18:22,742 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:18:23,021 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:18:25,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:18:25,800 INFO L93 Difference]: Finished difference Result 1561 states and 2140 transitions. [2020-10-27 23:18:25,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 23:18:25,801 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 114 [2020-10-27 23:18:25,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:18:25,807 INFO L225 Difference]: With dead ends: 1561 [2020-10-27 23:18:25,807 INFO L226 Difference]: Without dead ends: 792 [2020-10-27 23:18:25,811 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2020-10-27 23:18:25,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2020-10-27 23:18:25,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 792. [2020-10-27 23:18:25,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 792 states. [2020-10-27 23:18:25,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1075 transitions. [2020-10-27 23:18:25,932 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1075 transitions. Word has length 114 [2020-10-27 23:18:25,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:18:25,933 INFO L481 AbstractCegarLoop]: Abstraction has 792 states and 1075 transitions. [2020-10-27 23:18:25,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 23:18:25,933 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1075 transitions. [2020-10-27 23:18:25,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-27 23:18:25,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:18:25,936 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:18:25,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 23:18:25,936 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:18:25,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:18:25,937 INFO L82 PathProgramCache]: Analyzing trace with hash 492279104, now seen corresponding path program 1 times [2020-10-27 23:18:25,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:18:25,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1336354541] [2020-10-27 23:18:25,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:18:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:26,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:26,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:26,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-27 23:18:26,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:18:26,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 615 [2020-10-27 23:18:26,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:26,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:18:26,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-10-27 23:18:26,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:18:26,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:27,175 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:18:27,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:18:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:27,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:27,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:27,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:27,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:27,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:18:27,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:27,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:27,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:27,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:27,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:27,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:18:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:27,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:27,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:27,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 23:18:27,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:27,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:18:27,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:27,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:27,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:27,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:27,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:27,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 23:18:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:27,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:27,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:27,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:27,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:27,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:27,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:27,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:27,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:27,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:27,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:27,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 23:18:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:27,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:27,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:27,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:18:27,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:27,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:18:27,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:27,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:27,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:27,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:27,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:27,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:27,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:27,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:27,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:27,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:27,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:27,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:27,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:27,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:27,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:27,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:27,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:18:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:27,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:27,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:27,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:18:27,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:27,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:18:27,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:27,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:27,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:27,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:27,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:27,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:27,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:27,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:27,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:27,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:27,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:27,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:27,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:27,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:27,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:27,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:27,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 23:18:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:27,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:27,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:27,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:18:27,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:27,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:18:27,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:27,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:27,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:27,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:27,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:27,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:27,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:27,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:27,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:27,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:27,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:27,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:27,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:27,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:27,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:27,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:27,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:18:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:27,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:27,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:27,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 23:18:27,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:27,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:18:27,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:27,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:27,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:27,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:27,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:27,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:27,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:27,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:27,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:27,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:27,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:27,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:27,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:27,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:27,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:27,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:27,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:18:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:27,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:27,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:27,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:27,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:27,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:27,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:27,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:27,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:27,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:27,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:27,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:18:27,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:27,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:27,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:27,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:27,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:27,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:27,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:27,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:27,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:27,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:27,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:27,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 23:18:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:27,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:27,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:27,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:27,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:27,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:27,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:27,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:27,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:27,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:27,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:27,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-27 23:18:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:27,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:27,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:27,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:27,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:27,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:27,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:27,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:27,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:27,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:27,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:27,682 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 23:18:27,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1336354541] [2020-10-27 23:18:27,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:18:27,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:18:27,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729629543] [2020-10-27 23:18:27,683 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:18:27,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:18:27,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:18:27,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:18:27,684 INFO L87 Difference]: Start difference. First operand 792 states and 1075 transitions. Second operand 13 states. [2020-10-27 23:18:28,121 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:18:28,453 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:18:28,607 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:18:29,078 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:18:29,265 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:18:29,914 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:18:30,179 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:18:31,068 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-27 23:18:31,593 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 23:18:33,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:18:33,244 INFO L93 Difference]: Finished difference Result 1409 states and 1942 transitions. [2020-10-27 23:18:33,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 23:18:33,245 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-10-27 23:18:33,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:18:33,250 INFO L225 Difference]: With dead ends: 1409 [2020-10-27 23:18:33,251 INFO L226 Difference]: Without dead ends: 804 [2020-10-27 23:18:33,254 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:18:33,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2020-10-27 23:18:33,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 804. [2020-10-27 23:18:33,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2020-10-27 23:18:33,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1084 transitions. [2020-10-27 23:18:33,364 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1084 transitions. Word has length 125 [2020-10-27 23:18:33,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:18:33,364 INFO L481 AbstractCegarLoop]: Abstraction has 804 states and 1084 transitions. [2020-10-27 23:18:33,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:18:33,364 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1084 transitions. [2020-10-27 23:18:33,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-27 23:18:33,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:18:33,367 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-27 23:18:33,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 23:18:33,367 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:18:33,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:18:33,367 INFO L82 PathProgramCache]: Analyzing trace with hash 186189984, now seen corresponding path program 1 times [2020-10-27 23:18:33,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:18:33,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302639937] [2020-10-27 23:18:33,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:18:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:33,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:33,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:33,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:38,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:38,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-27 23:18:38,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:18:38,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 23:18:38,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:38,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 23:18:38,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 23:18:38,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-27 23:18:38,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:38,948 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:18:38,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:18:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:38,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:38,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:38,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:38,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:38,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:18:38,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:38,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:38,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:38,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:38,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:38,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:18:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:38,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:38,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:38,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 23:18:38,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:38,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:18:38,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:38,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:38,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:38,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:18:38,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:38,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 23:18:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:38,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:38,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:38,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:38,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:38,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:38,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:38,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:38,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:38,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:18:38,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:39,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 23:18:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:39,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:39,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:39,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:18:39,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:39,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 23:18:39,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:39,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:18:39,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:18:39,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 23:18:39,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:39,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:39,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:39,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:39,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:39,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:39,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:18:39,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:39,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:18:39,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:18:39,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:18:39,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:39,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:18:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:39,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:39,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:39,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:18:39,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:39,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 23:18:39,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:39,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:39,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:39,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 23:18:39,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:39,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:39,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:39,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:39,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:39,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:39,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:39,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:39,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:39,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:39,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:39,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:39,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:39,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 23:18:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:39,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:39,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:39,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:18:39,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:39,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:18:39,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:39,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:39,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:39,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 23:18:39,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:39,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:39,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:39,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:39,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:39,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:39,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:39,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:39,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:39,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:39,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:39,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:39,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:18:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:39,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:39,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:39,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 23:18:39,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:39,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:18:39,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:39,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:39,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:39,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 23:18:39,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:39,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:39,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:39,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:39,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:39,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:39,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:18:39,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:39,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:39,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:39,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:39,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:39,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:18:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:39,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:39,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:39,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:39,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:39,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:39,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:39,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:39,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:18:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:39,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:39,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:39,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:39,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:39,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:39,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:39,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:18:39,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:39,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:18:39,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:39,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 23:18:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:39,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:39,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:39,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:39,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:39,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:18:39,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:39,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:18:39,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:39,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:18:39,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:39,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-27 23:18:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:39,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:39,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:39,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:39,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:39,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:39,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:39,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:39,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:18:39,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:39,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:39,686 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 23:18:39,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1302639937] [2020-10-27 23:18:39,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:18:39,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-27 23:18:39,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117361412] [2020-10-27 23:18:39,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 23:18:39,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:18:39,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 23:18:39,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2020-10-27 23:18:39,688 INFO L87 Difference]: Start difference. First operand 804 states and 1084 transitions. Second operand 19 states. [2020-10-27 23:18:40,726 WARN L193 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 163 [2020-10-27 23:18:41,262 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:18:41,698 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:18:42,355 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:18:42,533 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-27 23:18:42,701 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-27 23:18:43,371 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-27 23:18:43,605 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-27 23:18:44,450 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-27 23:18:44,766 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 23:18:45,567 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-27 23:18:46,134 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-27 23:18:46,670 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-27 23:18:47,864 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-27 23:18:48,159 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:18:48,327 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:18:48,783 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:18:48,986 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:18:49,557 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:18:49,791 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:18:50,514 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:18:51,034 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:18:55,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:18:55,916 INFO L93 Difference]: Finished difference Result 2014 states and 2802 transitions. [2020-10-27 23:18:55,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-27 23:18:55,917 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 125 [2020-10-27 23:18:55,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:18:55,926 INFO L225 Difference]: With dead ends: 2014 [2020-10-27 23:18:55,926 INFO L226 Difference]: Without dead ends: 1397 [2020-10-27 23:18:55,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=428, Invalid=1294, Unknown=0, NotChecked=0, Total=1722 [2020-10-27 23:18:55,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1397 states. [2020-10-27 23:18:56,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1397 to 1222. [2020-10-27 23:18:56,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1222 states. [2020-10-27 23:18:56,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1666 transitions. [2020-10-27 23:18:56,116 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1666 transitions. Word has length 125 [2020-10-27 23:18:56,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:18:56,116 INFO L481 AbstractCegarLoop]: Abstraction has 1222 states and 1666 transitions. [2020-10-27 23:18:56,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 23:18:56,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1666 transitions. [2020-10-27 23:18:56,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-27 23:18:56,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:18:56,119 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:18:56,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 23:18:56,119 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:18:56,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:18:56,120 INFO L82 PathProgramCache]: Analyzing trace with hash -882999452, now seen corresponding path program 1 times [2020-10-27 23:18:56,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:18:56,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1639020770] [2020-10-27 23:18:56,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:18:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:56,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:56,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:56,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:56,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-27 23:18:56,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:18:56,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 549 [2020-10-27 23:18:56,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:56,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:18:56,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-27 23:18:56,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:18:56,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:57,209 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:18:57,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:18:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:57,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:57,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:57,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:57,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:57,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:18:57,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:57,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:57,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:57,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:57,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:57,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:18:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:57,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:57,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:57,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 23:18:57,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:57,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:57,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:57,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:57,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:57,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:57,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:57,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 23:18:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:57,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:57,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:57,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:57,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:57,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:57,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:57,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:57,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:57,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:57,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:57,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 23:18:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:57,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:57,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:57,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:18:57,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:57,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:18:57,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:57,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:57,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:57,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:57,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:57,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:57,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:57,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:57,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:57,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:57,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:57,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:57,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:57,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:57,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:57,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:57,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:18:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:57,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:57,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:57,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:18:57,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:57,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:18:57,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:57,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:57,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:57,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:57,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:57,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:57,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:57,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:57,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:57,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:57,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:57,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:57,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:57,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:57,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:57,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:57,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 23:18:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:57,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:57,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:57,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:18:57,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:57,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:18:57,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:57,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:57,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:57,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:57,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:57,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:57,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:57,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:57,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:57,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:57,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:57,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:57,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:57,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:57,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:57,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:57,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:57,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:18:57,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:57,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:57,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:57,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 23:18:57,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:57,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:18:57,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:57,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:57,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:57,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:57,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:57,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:18:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:57,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:57,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:57,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:57,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:57,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:57,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:57,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:57,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:57,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:57,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:57,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:18:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:57,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:57,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:57,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:18:57,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:57,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:57,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:57,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:57,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:57,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:57,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:57,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:18:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:57,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:57,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:57,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:57,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:57,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:18:57,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:57,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:57,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:57,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:57,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:57,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 23:18:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:57,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:57,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:57,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:57,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:57,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:57,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:57,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:57,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:57,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:57,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:57,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-27 23:18:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:57,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:57,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:57,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:18:57,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:57,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:57,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:57,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:57,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:57,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:57,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:57,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:18:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:18:57,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:18:57,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:18:57,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:18:57,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:18:57,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:18:57,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:18:57,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:18:57,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:18:57,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:18:57,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:18:57,736 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-27 23:18:57,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1639020770] [2020-10-27 23:18:57,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:18:57,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:18:57,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881778009] [2020-10-27 23:18:57,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:18:57,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:18:57,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:18:57,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:18:57,738 INFO L87 Difference]: Start difference. First operand 1222 states and 1666 transitions. Second operand 13 states. [2020-10-27 23:18:58,187 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:18:58,504 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:18:58,660 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:18:59,118 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:18:59,308 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:18:59,946 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:19:00,215 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:19:01,124 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:19:01,639 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:19:03,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:19:03,417 INFO L93 Difference]: Finished difference Result 2205 states and 3071 transitions. [2020-10-27 23:19:03,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 23:19:03,418 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 132 [2020-10-27 23:19:03,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:19:03,428 INFO L225 Difference]: With dead ends: 2205 [2020-10-27 23:19:03,428 INFO L226 Difference]: Without dead ends: 1252 [2020-10-27 23:19:03,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:19:03,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2020-10-27 23:19:03,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1252. [2020-10-27 23:19:03,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1252 states. [2020-10-27 23:19:03,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1690 transitions. [2020-10-27 23:19:03,622 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1690 transitions. Word has length 132 [2020-10-27 23:19:03,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:19:03,623 INFO L481 AbstractCegarLoop]: Abstraction has 1252 states and 1690 transitions. [2020-10-27 23:19:03,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:19:03,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1690 transitions. [2020-10-27 23:19:03,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-27 23:19:03,625 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:19:03,625 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:19:03,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 23:19:03,626 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:19:03,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:19:03,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1346016346, now seen corresponding path program 1 times [2020-10-27 23:19:03,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:19:03,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357901009] [2020-10-27 23:19:03,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:19:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:03,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:03,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:04,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:04,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-27 23:19:04,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:19:04,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 638 [2020-10-27 23:19:04,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:04,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:19:04,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-27 23:19:04,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:19:04,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:04,774 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:19:04,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:19:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:04,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:04,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:04,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:04,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:04,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:19:04,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:04,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:04,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:04,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:04,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:04,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:19:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:04,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:04,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:04,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 23:19:04,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:04,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:19:04,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:04,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:04,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:04,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:04,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:04,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 23:19:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:04,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:04,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:04,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:04,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:04,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:04,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:04,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:04,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 23:19:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:04,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:04,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:04,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:19:04,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:04,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:19:04,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:04,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:04,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:04,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:04,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:04,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:04,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:04,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:04,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:04,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:04,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:04,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:04,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:04,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:04,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:04,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:04,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:04,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:19:04,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:04,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:04,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:04,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:19:04,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:04,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:19:04,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:04,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:04,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:04,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:04,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:04,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:04,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:04,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:04,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:04,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:04,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:19:04,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:04,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:04,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:04,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:04,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:05,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 23:19:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:05,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:05,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:05,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:19:05,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:05,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:19:05,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:05,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:05,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:05,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:05,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:05,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:05,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:05,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:05,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:05,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:05,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:05,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:05,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:05,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:19:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:05,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:05,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:05,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 23:19:05,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:05,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:19:05,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:05,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:05,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:05,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:05,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:05,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:05,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:05,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:05,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:05,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:05,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:19:05,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:05,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:05,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:05,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:05,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:05,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:19:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:05,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:05,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:05,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:05,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:05,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:05,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:05,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:05,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:05,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:05,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:05,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:19:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:05,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:05,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:05,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:05,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:05,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:05,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:05,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:05,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:05,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:05,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:05,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 23:19:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:05,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:05,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:05,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:05,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:05,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:05,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:05,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:05,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:05,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:05,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:05,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-27 23:19:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:05,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:05,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:05,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:05,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:05,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:05,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:05,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:05,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:05,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:05,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:05,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:19:05,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:05,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:05,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:05,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:05,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:05,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:05,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:05,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:05,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:05,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:05,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:05,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 23:19:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:05,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:05,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:05,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:05,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:05,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:05,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:05,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:05,243 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-27 23:19:05,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357901009] [2020-10-27 23:19:05,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:19:05,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:19:05,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705360569] [2020-10-27 23:19:05,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:19:05,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:19:05,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:19:05,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:19:05,245 INFO L87 Difference]: Start difference. First operand 1252 states and 1690 transitions. Second operand 13 states. [2020-10-27 23:19:05,678 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:19:05,971 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:19:06,117 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:19:06,585 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:19:06,767 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:19:07,379 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:19:07,617 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:19:08,631 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:19:09,111 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:19:10,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:19:10,722 INFO L93 Difference]: Finished difference Result 2250 states and 3080 transitions. [2020-10-27 23:19:10,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 23:19:10,723 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 140 [2020-10-27 23:19:10,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:19:10,731 INFO L225 Difference]: With dead ends: 2250 [2020-10-27 23:19:10,731 INFO L226 Difference]: Without dead ends: 1276 [2020-10-27 23:19:10,736 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:19:10,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2020-10-27 23:19:10,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1276. [2020-10-27 23:19:10,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1276 states. [2020-10-27 23:19:10,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1708 transitions. [2020-10-27 23:19:10,949 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1708 transitions. Word has length 140 [2020-10-27 23:19:10,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:19:10,949 INFO L481 AbstractCegarLoop]: Abstraction has 1276 states and 1708 transitions. [2020-10-27 23:19:10,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:19:10,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1708 transitions. [2020-10-27 23:19:10,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-27 23:19:10,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:19:10,952 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-10-27 23:19:10,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 23:19:10,952 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:19:10,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:19:10,953 INFO L82 PathProgramCache]: Analyzing trace with hash -652017264, now seen corresponding path program 1 times [2020-10-27 23:19:10,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:19:10,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1586013005] [2020-10-27 23:19:10,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:19:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:10,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:11,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:11,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:15,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:15,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-27 23:19:15,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:19:15,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-27 23:19:15,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:15,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 23:19:15,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-10-27 23:19:15,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 23:19:15,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:16,592 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:19:16,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:19:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:16,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:16,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:16,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:16,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:16,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:19:16,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:16,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:16,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:16,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:16,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:16,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:19:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:16,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:16,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:16,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 23:19:16,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:16,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:19:16,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:16,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:16,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:16,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:16,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:16,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 23:19:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:16,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:16,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:16,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:16,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:16,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:19:16,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:16,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:16,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:16,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:16,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:16,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 23:19:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:16,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:16,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:16,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:19:16,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:16,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:19:16,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:16,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:16,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:16,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:16,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:16,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:16,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:16,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:16,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:16,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:16,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:16,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:16,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:16,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:16,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:16,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:16,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:19:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:16,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:16,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:16,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:19:16,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:16,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:19:16,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:16,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:16,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:16,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:16,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:16,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:16,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:16,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:16,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:16,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:16,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:16,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:16,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:16,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:16,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:16,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:16,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 23:19:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:16,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:16,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:16,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:19:16,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:16,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:19:16,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:16,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:16,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:16,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:16,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:16,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:16,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:16,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:16,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:16,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:16,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:16,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:16,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:16,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:16,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:16,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:17,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:19:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:17,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:17,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:17,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 23:19:17,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:17,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:19:17,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:17,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:17,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:17,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:17,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:17,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:17,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:17,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:17,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:17,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:17,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:19:17,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:17,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:17,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:17,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:17,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:17,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:19:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:17,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:17,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:17,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:17,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:17,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:19:17,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:17,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:17,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:17,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:17,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:17,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:19:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:17,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:17,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:17,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:17,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:17,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:17,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:17,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:17,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:17,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:17,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:17,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 23:19:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:17,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:17,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:17,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:17,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:17,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:17,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:17,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:17,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:17,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:17,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:17,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-27 23:19:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:17,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:17,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:17,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:17,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:17,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:19:17,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:17,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:19:17,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:17,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:19:17,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:17,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:19:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:17,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:17,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:17,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:17,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:17,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:19:17,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:17,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:19:17,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:17,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:19:17,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:17,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-27 23:19:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:17,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:17,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:17,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:17,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:17,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:19:17,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:17,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:17,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:19:17,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:17,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:17,251 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-27 23:19:17,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1586013005] [2020-10-27 23:19:17,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 23:19:17,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-27 23:19:17,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023496336] [2020-10-27 23:19:17,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 23:19:17,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:19:17,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 23:19:17,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2020-10-27 23:19:17,253 INFO L87 Difference]: Start difference. First operand 1276 states and 1708 transitions. Second operand 17 states. [2020-10-27 23:19:17,858 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:19:18,254 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:19:18,411 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:19:19,169 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:19:19,389 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:19:20,279 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:19:20,615 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:19:21,496 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:19:22,049 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:19:22,532 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:19:23,078 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:19:23,583 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 23:19:24,125 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:19:24,728 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:19:25,263 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 23:19:26,593 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-27 23:19:27,030 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 23:19:27,849 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:19:28,723 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:19:33,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:19:33,656 INFO L93 Difference]: Finished difference Result 3403 states and 4716 transitions. [2020-10-27 23:19:33,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 23:19:33,657 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 141 [2020-10-27 23:19:33,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:19:33,672 INFO L225 Difference]: With dead ends: 3403 [2020-10-27 23:19:33,672 INFO L226 Difference]: Without dead ends: 2480 [2020-10-27 23:19:33,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=355, Invalid=905, Unknown=0, NotChecked=0, Total=1260 [2020-10-27 23:19:33,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2020-10-27 23:19:34,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 1936. [2020-10-27 23:19:34,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1936 states. [2020-10-27 23:19:34,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936 states to 1936 states and 2598 transitions. [2020-10-27 23:19:34,029 INFO L78 Accepts]: Start accepts. Automaton has 1936 states and 2598 transitions. Word has length 141 [2020-10-27 23:19:34,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:19:34,030 INFO L481 AbstractCegarLoop]: Abstraction has 1936 states and 2598 transitions. [2020-10-27 23:19:34,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 23:19:34,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 2598 transitions. [2020-10-27 23:19:34,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-27 23:19:34,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:19:34,033 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:19:34,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 23:19:34,033 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:19:34,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:19:34,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1882001012, now seen corresponding path program 1 times [2020-10-27 23:19:34,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:19:34,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267460149] [2020-10-27 23:19:34,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:19:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:34,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:34,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:34,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:39,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:39,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-27 23:19:39,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:19:39,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 23:19:39,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:39,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 23:19:39,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 23:19:39,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-27 23:19:39,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:39,575 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 23:19:39,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:19:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:39,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:39,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:39,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:39,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:39,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:19:39,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:39,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:39,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:39,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:39,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:39,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:19:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:39,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:39,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:39,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 23:19:39,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:39,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:19:39,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:19:39,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:39,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 23:19:39,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:39,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 23:19:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:39,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:39,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:39,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:39,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:39,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:39,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:39,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:19:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:19:39,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:39,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 23:19:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:39,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:39,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:39,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:19:39,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:39,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:19:39,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:39,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:19:39,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:39,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 23:19:39,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:39,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:39,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:39,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:39,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:39,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:39,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:39,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:19:39,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:39,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:39,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:39,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:39,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:39,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:19:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:39,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:39,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:39,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:19:39,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:39,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 23:19:39,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:39,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:19:39,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:19:39,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 23:19:39,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:39,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:39,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:39,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:39,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:39,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:39,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:19:39,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:39,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:19:39,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:19:39,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:19:39,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:39,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 23:19:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:39,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:39,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:39,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 23:19:39,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:39,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:19:39,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:39,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:19:39,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:39,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 23:19:39,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:40,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:40,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:40,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:40,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:40,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:40,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:40,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:40,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:40,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:40,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:40,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:40,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:19:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:40,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:40,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:40,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 23:19:40,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:40,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:19:40,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:40,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:19:40,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:40,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 23:19:40,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:40,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 23:19:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:40,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:40,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:40,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:40,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:40,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 23:19:40,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:40,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:40,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:40,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:40,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:40,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 23:19:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:40,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:40,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:40,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:19:40,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:40,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:40,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:40,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:40,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:40,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:40,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:40,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 23:19:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:40,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:40,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:40,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:40,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 23:19:40,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:19:40,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-27 23:19:40,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:40,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:19:40,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-27 23:19:40,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 23:19:40,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:40,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 23:19:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:40,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:40,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:40,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:40,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:40,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:19:40,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:40,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:40,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:40,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:40,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:40,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 23:19:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:40,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:40,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:40,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:40,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:40,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:40,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:40,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:40,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:40,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:40,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:40,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 23:19:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:40,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:40,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:40,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:40,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:40,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:19:40,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:19:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:19:40,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:40,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 23:19:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:40,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:40,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:40,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:40,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:40,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:19:40,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:40,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:19:40,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:40,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:19:40,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:40,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 23:19:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:40,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:40,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:40,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:19:40,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:40,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:19:40,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:40,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:19:40,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:40,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:19:40,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:40,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 23:19:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:19:40,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:19:40,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:19:40,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:19:40,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:19:40,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:19:40,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:19:40,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:19:40,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:19:40,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:19:40,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:19:40,483 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-27 23:19:40,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267460149] [2020-10-27 23:19:40,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:19:40,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-27 23:19:40,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571062550] [2020-10-27 23:19:40,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 23:19:40,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:19:40,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 23:19:40,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2020-10-27 23:19:40,485 INFO L87 Difference]: Start difference. First operand 1936 states and 2598 transitions. Second operand 19 states. [2020-10-27 23:19:41,109 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:19:41,708 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-27 23:19:42,245 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-27 23:19:42,651 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-27 23:19:42,843 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-27 23:19:43,719 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-27 23:19:44,071 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-27 23:19:44,313 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-27 23:19:45,289 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 23:19:45,634 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-27 23:19:46,601 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:19:47,310 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:19:47,826 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:19:48,653 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-27 23:19:48,977 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-27 23:19:49,144 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-27 23:19:49,574 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:19:49,778 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 23:19:50,338 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:19:50,596 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 23:19:51,489 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:19:52,040 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:19:52,595 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 23:19:53,168 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-27 23:19:53,739 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:19:54,728 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-27 23:19:56,746 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 88