/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_1.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:33:16,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:33:16,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:33:16,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:33:16,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:33:16,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:33:16,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:33:16,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:33:16,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:33:16,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:33:16,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:33:16,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:33:16,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:33:16,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:33:16,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:33:16,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:33:16,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:33:16,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:33:16,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:33:16,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:33:16,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:33:16,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:33:16,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:33:16,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:33:16,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:33:16,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:33:16,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:33:16,824 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:33:16,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:33:16,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:33:16,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:33:16,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:33:16,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:33:16,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:33:16,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:33:16,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:33:16,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:33:16,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:33:16,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:33:16,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:33:16,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:33:16,837 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 11:33:16,888 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:33:16,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:33:16,890 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:33:16,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:33:16,891 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:33:16,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:33:16,892 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:33:16,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:33:16,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:33:16,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:33:16,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:33:16,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:33:16,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:33:16,894 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:33:16,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:33:16,895 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:33:16,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:33:16,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:33:16,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:33:16,895 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:33:16,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:33:16,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:33:16,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:33:16,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:33:16,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:33:16,897 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:33:16,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:33:16,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:33:16,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:33:16,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:33:17,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:33:17,385 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:33:17,390 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:33:17,391 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:33:17,392 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:33:17,393 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_1.cil-2.c [2020-09-21 11:33:17,475 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e90891423/5adbb2da609940bba56690d9ca94a258/FLAG24be7271e [2020-09-21 11:33:18,052 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:33:18,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/pc_sfifo_1.cil-2.c [2020-09-21 11:33:18,073 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e90891423/5adbb2da609940bba56690d9ca94a258/FLAG24be7271e [2020-09-21 11:33:18,351 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e90891423/5adbb2da609940bba56690d9ca94a258 [2020-09-21 11:33:18,365 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:33:18,371 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:33:18,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:33:18,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:33:18,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:33:18,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:33:18" (1/1) ... [2020-09-21 11:33:18,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@275caafa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:18, skipping insertion in model container [2020-09-21 11:33:18,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:33:18" (1/1) ... [2020-09-21 11:33:18,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:33:18,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:33:18,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:33:18,740 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:33:18,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:33:18,797 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:33:18,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:18 WrapperNode [2020-09-21 11:33:18,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:33:18,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:33:18,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:33:18,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:33:18,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:18" (1/1) ... [2020-09-21 11:33:18,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:18" (1/1) ... [2020-09-21 11:33:18,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:18" (1/1) ... [2020-09-21 11:33:18,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:18" (1/1) ... [2020-09-21 11:33:18,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:18" (1/1) ... [2020-09-21 11:33:18,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:18" (1/1) ... [2020-09-21 11:33:18,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:18" (1/1) ... [2020-09-21 11:33:18,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:33:18,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:33:18,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:33:18,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:33:18,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:33:19,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:33:19,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:33:19,017 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-21 11:33:19,017 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2020-09-21 11:33:19,017 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2020-09-21 11:33:19,017 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2020-09-21 11:33:19,017 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2020-09-21 11:33:19,017 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2020-09-21 11:33:19,018 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-21 11:33:19,018 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-21 11:33:19,018 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-21 11:33:19,018 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-21 11:33:19,018 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-21 11:33:19,018 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-21 11:33:19,019 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:33:19,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:33:19,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:33:19,019 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-21 11:33:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2020-09-21 11:33:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2020-09-21 11:33:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2020-09-21 11:33:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2020-09-21 11:33:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2020-09-21 11:33:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-21 11:33:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-21 11:33:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-21 11:33:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-21 11:33:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-21 11:33:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-21 11:33:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:33:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:33:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:33:19,508 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:33:19,509 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-21 11:33:19,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:33:19 BoogieIcfgContainer [2020-09-21 11:33:19,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:33:19,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:33:19,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:33:19,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:33:19,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:33:18" (1/3) ... [2020-09-21 11:33:19,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e4dc139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:33:19, skipping insertion in model container [2020-09-21 11:33:19,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:18" (2/3) ... [2020-09-21 11:33:19,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e4dc139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:33:19, skipping insertion in model container [2020-09-21 11:33:19,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:33:19" (3/3) ... [2020-09-21 11:33:19,527 INFO L109 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2.c [2020-09-21 11:33:19,537 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:33:19,548 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:33:19,569 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:33:19,597 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:33:19,597 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:33:19,597 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:33:19,597 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:33:19,597 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:33:19,597 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:33:19,598 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:33:19,598 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:33:19,624 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-09-21 11:33:19,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-21 11:33:19,636 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:19,638 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] [2020-09-21 11:33:19,638 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:19,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:19,645 INFO L82 PathProgramCache]: Analyzing trace with hash 800633075, now seen corresponding path program 1 times [2020-09-21 11:33:19,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:19,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1627041926] [2020-09-21 11:33:19,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:19,917 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:19,917 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:19,917 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:19,917 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:19,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-21 11:33:19,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:19,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:33:19,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:19,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:19,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-21 11:33:19,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:19,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:20,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:20,132 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:20,135 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:20,136 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:20,136 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:20,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:20,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:20,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:33:20,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:20,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:20,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:20,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:20,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:20,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:20,203 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:20,203 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:20,204 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:20,204 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:20,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:20,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:20,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:20,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:20,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:20,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:20,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:20,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:20,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:20,228 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:20,228 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:20,228 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:20,229 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:20,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:20,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:20,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:20,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:20,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:20,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:20,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:20,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:20,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:33:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:20,240 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:20,240 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:20,241 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:20,241 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:20,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:20,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:20,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:20,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:20,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:20,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:20,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:33:20,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:20,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:33:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:20,258 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:20,258 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:20,259 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:20,259 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:20,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:20,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:20,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:20,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:20,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:20,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:33:20,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:20,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:20,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:20,273 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:20,273 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:20,273 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:20,274 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:20,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:20,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:20,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:20,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:20,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:20,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:20,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:20,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:20,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:20,282 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:20,282 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:20,283 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:20,283 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:20,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:20,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:20,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:20,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:20,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:20,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:20,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:20,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:20,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:20,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1627041926] [2020-09-21 11:33:20,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:20,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:33:20,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104978226] [2020-09-21 11:33:20,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:33:20,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:20,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:33:20,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:33:20,338 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 6 states. [2020-09-21 11:33:21,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:21,499 INFO L93 Difference]: Finished difference Result 356 states and 554 transitions. [2020-09-21 11:33:21,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:33:21,501 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-09-21 11:33:21,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:21,521 INFO L225 Difference]: With dead ends: 356 [2020-09-21 11:33:21,522 INFO L226 Difference]: Without dead ends: 248 [2020-09-21 11:33:21,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:33:21,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-09-21 11:33:21,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 185. [2020-09-21 11:33:21,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-09-21 11:33:21,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 246 transitions. [2020-09-21 11:33:21,633 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 246 transitions. Word has length 65 [2020-09-21 11:33:21,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:21,633 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 246 transitions. [2020-09-21 11:33:21,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:33:21,634 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 246 transitions. [2020-09-21 11:33:21,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-21 11:33:21,639 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:21,639 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] [2020-09-21 11:33:21,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:33:21,640 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:21,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:21,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1537976919, now seen corresponding path program 1 times [2020-09-21 11:33:21,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:21,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1736824395] [2020-09-21 11:33:21,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,681 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,681 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,681 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,681 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-21 11:33:21,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:33:21,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:21,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:33:21,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:33:21,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:21,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,754 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,754 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,754 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,754 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:21,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:21,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:21,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:21,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:21,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:21,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,793 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,794 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,794 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,794 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:21,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:33:21,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:21,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:21,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:33:21,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:21,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,818 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,819 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,819 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,819 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:21,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:21,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:21,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:33:21,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:33:21,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:21,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:33:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,842 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,843 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,843 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,843 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:21,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:21,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:21,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-21 11:33:21,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:21,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:21,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:33:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,854 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,854 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,854 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,854 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:21,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:21,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:21,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:33:21,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:21,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:21,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,864 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,864 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,864 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,864 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:21,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:21,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:21,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:21,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:21,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:21,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,870 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,870 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,870 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,871 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:21,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:21,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:21,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:21,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:21,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:21,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:21,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1736824395] [2020-09-21 11:33:21,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:21,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:33:21,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948617211] [2020-09-21 11:33:21,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:33:21,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:21,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:33:21,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:33:21,885 INFO L87 Difference]: Start difference. First operand 185 states and 246 transitions. Second operand 7 states. [2020-09-21 11:33:22,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:22,611 INFO L93 Difference]: Finished difference Result 406 states and 562 transitions. [2020-09-21 11:33:22,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:33:22,611 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2020-09-21 11:33:22,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:22,615 INFO L225 Difference]: With dead ends: 406 [2020-09-21 11:33:22,615 INFO L226 Difference]: Without dead ends: 238 [2020-09-21 11:33:22,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:33:22,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-21 11:33:22,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 182. [2020-09-21 11:33:22,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-21 11:33:22,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 241 transitions. [2020-09-21 11:33:22,654 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 241 transitions. Word has length 66 [2020-09-21 11:33:22,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:22,655 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 241 transitions. [2020-09-21 11:33:22,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:33:22,655 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 241 transitions. [2020-09-21 11:33:22,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-21 11:33:22,659 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:22,659 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] [2020-09-21 11:33:22,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:33:22,659 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:22,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:22,660 INFO L82 PathProgramCache]: Analyzing trace with hash -478173211, now seen corresponding path program 1 times [2020-09-21 11:33:22,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:22,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [268254170] [2020-09-21 11:33:22,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:22,830 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-21 11:33:22,831 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:22,831 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:22,831 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:22,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-21 11:33:22,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:22,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-21 11:33:22,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:22,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:33:22,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:33:22,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:33:22,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:22,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:22,966 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:22,966 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:22,966 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:22,966 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:22,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:22,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:22,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:22,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:22,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:22,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:22,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:22,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:22,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:22,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:22,999 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:22,999 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:22,999 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:23,000 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:23,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:23,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:23,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:33:23,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:23,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:23,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:23,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:33:23,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:23,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:23,026 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:23,027 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:23,027 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:23,027 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:23,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:23,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:23,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:23,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:23,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:23,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:23,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:23,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:23,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:33:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:23,035 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:23,035 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:23,035 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:23,035 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:23,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:23,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:23,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:23,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:23,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:23,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:23,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:23,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:23,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:33:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:23,074 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:23,075 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:23,093 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:23,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:23,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:23,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:23,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 11:33:23,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:23,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:23,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:33:23,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:33:23,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:23,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 11:33:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:23,127 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:23,127 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:23,128 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:23,128 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:23,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:23,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:23,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:23,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:23,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:23,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:33:23,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:23,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:23,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:23,136 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:23,136 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:23,136 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:23,137 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:23,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:23,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:23,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:23,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:23,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:23,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:23,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:23,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:23,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:23,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:23,142 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:23,142 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:23,142 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:23,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:23,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:23,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:23,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:23,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:23,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:23,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:23,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:23,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:23,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:23,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [268254170] [2020-09-21 11:33:23,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:23,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 11:33:23,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168500142] [2020-09-21 11:33:23,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:33:23,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:23,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:33:23,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:33:23,159 INFO L87 Difference]: Start difference. First operand 182 states and 241 transitions. Second operand 10 states. [2020-09-21 11:33:25,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:25,165 INFO L93 Difference]: Finished difference Result 777 states and 1154 transitions. [2020-09-21 11:33:25,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-21 11:33:25,165 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2020-09-21 11:33:25,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:25,171 INFO L225 Difference]: With dead ends: 777 [2020-09-21 11:33:25,171 INFO L226 Difference]: Without dead ends: 612 [2020-09-21 11:33:25,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2020-09-21 11:33:25,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2020-09-21 11:33:25,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 444. [2020-09-21 11:33:25,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-09-21 11:33:25,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 635 transitions. [2020-09-21 11:33:25,241 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 635 transitions. Word has length 72 [2020-09-21 11:33:25,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:25,242 INFO L479 AbstractCegarLoop]: Abstraction has 444 states and 635 transitions. [2020-09-21 11:33:25,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:33:25,242 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 635 transitions. [2020-09-21 11:33:25,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-21 11:33:25,244 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:25,245 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] [2020-09-21 11:33:25,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:33:25,245 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:25,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:25,246 INFO L82 PathProgramCache]: Analyzing trace with hash -708931582, now seen corresponding path program 1 times [2020-09-21 11:33:25,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:25,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [364447808] [2020-09-21 11:33:25,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:25,306 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:25,306 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:25,306 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:25,306 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:25,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-21 11:33:25,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:25,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 11:33:25,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:25,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:33:25,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:33:25,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:33:25,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:25,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:25,388 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:25,388 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:25,388 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:25,388 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:25,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:25,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:25,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:25,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:25,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:25,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:25,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:25,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:25,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:25,426 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:25,427 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:25,427 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:25,427 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:25,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:25,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:25,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:25,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:25,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:25,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:25,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:33:25,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:25,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:25,456 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:25,457 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:25,457 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:25,457 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:25,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:25,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:25,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:25,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:25,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:25,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:25,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:25,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:25,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:33:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:25,466 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:25,466 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:25,467 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:25,467 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:25,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:25,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:25,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:25,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:25,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:25,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:25,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:25,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:25,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:33:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:25,479 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:25,479 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:25,479 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:25,480 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:25,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:25,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:25,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:25,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:25,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:25,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:25,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:33:25,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:25,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:25,503 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:25,503 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:25,504 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:25,504 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:25,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:25,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:25,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:25,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:25,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:25,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:25,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:33:25,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:25,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:25,514 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:25,514 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:25,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:25,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:25,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:25,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:25,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:25,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:25,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:25,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:25,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:33:25,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:25,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:25,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [364447808] [2020-09-21 11:33:25,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:25,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:33:25,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916072186] [2020-09-21 11:33:25,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:33:25,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:25,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:33:25,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:33:25,536 INFO L87 Difference]: Start difference. First operand 444 states and 635 transitions. Second operand 8 states. [2020-09-21 11:33:26,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:26,817 INFO L93 Difference]: Finished difference Result 926 states and 1390 transitions. [2020-09-21 11:33:26,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:33:26,818 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-09-21 11:33:26,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:26,823 INFO L225 Difference]: With dead ends: 926 [2020-09-21 11:33:26,824 INFO L226 Difference]: Without dead ends: 499 [2020-09-21 11:33:26,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:33:26,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-09-21 11:33:26,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 402. [2020-09-21 11:33:26,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-21 11:33:26,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 540 transitions. [2020-09-21 11:33:26,893 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 540 transitions. Word has length 66 [2020-09-21 11:33:26,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:26,894 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 540 transitions. [2020-09-21 11:33:26,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:33:26,894 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 540 transitions. [2020-09-21 11:33:26,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-21 11:33:26,896 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:26,896 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] [2020-09-21 11:33:26,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:33:26,897 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:26,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:26,897 INFO L82 PathProgramCache]: Analyzing trace with hash -822318239, now seen corresponding path program 1 times [2020-09-21 11:33:26,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:26,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1097572896] [2020-09-21 11:33:26,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,944 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,944 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,945 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,945 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-21 11:33:26,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:33:26,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:26,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-21 11:33:26,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:26,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:27,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:27,034 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:27,034 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:27,035 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:27,035 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:27,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:27,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:27,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:27,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:27,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:27,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:27,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:27,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:27,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:27,064 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:27,064 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:27,066 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:27,066 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:27,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:27,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:27,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:27,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:27,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:27,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:27,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:27,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:27,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:27,082 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:27,082 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:27,083 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:27,083 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:27,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:27,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:27,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:27,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:27,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:27,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:27,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:27,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:27,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:33:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:27,089 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:27,089 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:27,090 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:27,090 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:27,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:27,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:27,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:27,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:27,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:27,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:27,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:27,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:27,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:33:27,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:27,109 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:27,109 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:27,109 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:27,109 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:27,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:27,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:27,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:33:27,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:27,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:27,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-21 11:33:27,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:27,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:27,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:27,171 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:27,171 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:27,172 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:27,172 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:27,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:27,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:27,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:33:27,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:27,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:27,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:27,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:27,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:27,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:27,200 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:27,200 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:27,200 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:27,200 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:27,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:27,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:27,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:27,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:27,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:27,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-21 11:33:27,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:27,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:27,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:27,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1097572896] [2020-09-21 11:33:27,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:27,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:33:27,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458394102] [2020-09-21 11:33:27,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:33:27,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:27,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:33:27,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:33:27,217 INFO L87 Difference]: Start difference. First operand 402 states and 540 transitions. Second operand 9 states. [2020-09-21 11:33:28,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:28,128 INFO L93 Difference]: Finished difference Result 883 states and 1260 transitions. [2020-09-21 11:33:28,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:33:28,128 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-09-21 11:33:28,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:28,135 INFO L225 Difference]: With dead ends: 883 [2020-09-21 11:33:28,135 INFO L226 Difference]: Without dead ends: 498 [2020-09-21 11:33:28,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:33:28,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-09-21 11:33:28,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 420. [2020-09-21 11:33:28,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-09-21 11:33:28,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 558 transitions. [2020-09-21 11:33:28,186 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 558 transitions. Word has length 66 [2020-09-21 11:33:28,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:28,186 INFO L479 AbstractCegarLoop]: Abstraction has 420 states and 558 transitions. [2020-09-21 11:33:28,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:33:28,186 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 558 transitions. [2020-09-21 11:33:28,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-21 11:33:28,188 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:28,188 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] [2020-09-21 11:33:28,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:33:28,188 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:28,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:28,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1843386593, now seen corresponding path program 1 times [2020-09-21 11:33:28,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:28,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145678561] [2020-09-21 11:33:28,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:28,221 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:33:28,221 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -29 [2020-09-21 11:33:28,222 FATAL L256 erpolLogProxyWrapper]: Difference in width: 29 [2020-09-21 11:33:28,222 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:28,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-21 11:33:28,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:28,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:33:28,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:28,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:28,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-21 11:33:28,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 11:33:28,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:28,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:28,282 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:28,282 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:28,282 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:28,283 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:28,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:28,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:28,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:28,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:28,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:28,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:28,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:28,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:28,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:28,312 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:28,312 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:28,313 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:28,313 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:28,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:28,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:28,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:28,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:28,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:28,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:28,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:28,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:28,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:28,335 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:28,336 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:28,336 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:28,337 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:28,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:28,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:28,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:28,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:28,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:28,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:28,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:28,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:28,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:33:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:28,343 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:28,344 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:28,344 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:28,344 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:28,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:28,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:28,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:28,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:28,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:28,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:28,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:28,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:28,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:33:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:28,356 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:28,356 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:28,357 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:28,357 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:28,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:28,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:28,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:28,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:28,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:28,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 11:33:28,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:33:28,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:28,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:28,378 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:28,379 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:28,379 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:28,379 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:28,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:28,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:28,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:28,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:28,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:28,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:28,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:28,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:28,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:28,387 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:28,387 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:28,387 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:28,388 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:28,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:28,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:28,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:28,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:28,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:28,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:28,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:33:28,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:28,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:28,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145678561] [2020-09-21 11:33:28,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:28,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:33:28,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94350493] [2020-09-21 11:33:28,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:33:28,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:28,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:33:28,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:33:28,410 INFO L87 Difference]: Start difference. First operand 420 states and 558 transitions. Second operand 7 states. [2020-09-21 11:33:29,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:29,706 INFO L93 Difference]: Finished difference Result 1245 states and 1775 transitions. [2020-09-21 11:33:29,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:33:29,706 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2020-09-21 11:33:29,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:29,714 INFO L225 Difference]: With dead ends: 1245 [2020-09-21 11:33:29,714 INFO L226 Difference]: Without dead ends: 842 [2020-09-21 11:33:29,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:33:29,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2020-09-21 11:33:29,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 725. [2020-09-21 11:33:29,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2020-09-21 11:33:29,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 961 transitions. [2020-09-21 11:33:29,800 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 961 transitions. Word has length 66 [2020-09-21 11:33:29,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:29,801 INFO L479 AbstractCegarLoop]: Abstraction has 725 states and 961 transitions. [2020-09-21 11:33:29,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:33:29,801 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 961 transitions. [2020-09-21 11:33:29,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-21 11:33:29,802 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:29,803 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] [2020-09-21 11:33:29,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:33:29,803 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:29,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:29,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1172255968, now seen corresponding path program 1 times [2020-09-21 11:33:29,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:29,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [692379201] [2020-09-21 11:33:29,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:29,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:29,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:29,839 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:29,839 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:29,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-21 11:33:29,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:29,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:33:29,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:29,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:29,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-21 11:33:29,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:29,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:29,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:29,914 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:29,915 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:29,915 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:29,915 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:29,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:29,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:29,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:29,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:29,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:29,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:29,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:29,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:29,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:29,947 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:29,947 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:29,948 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:29,948 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:29,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:29,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:29,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:29,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:29,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:29,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:29,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:29,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:29,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:29,964 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:29,964 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:29,965 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:29,965 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:29,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:29,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:29,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:29,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:29,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:29,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:29,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:29,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:29,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:33:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:29,970 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:29,970 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:29,971 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:29,971 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:29,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:29,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:29,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:29,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:29,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:29,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:29,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:29,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:29,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:33:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:29,991 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:29,991 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:29,992 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:29,992 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:29,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:29,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:29,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:33:29,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:29,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:29,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-21 11:33:29,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:29,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:30,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,039 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,039 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,040 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,040 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:30,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:30,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:30,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:30,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:30,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,051 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,052 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,052 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,052 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:30,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:33:30,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:30,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:30,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:30,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:30,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [692379201] [2020-09-21 11:33:30,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:30,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:33:30,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178027166] [2020-09-21 11:33:30,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:33:30,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:30,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:33:30,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:33:30,113 INFO L87 Difference]: Start difference. First operand 725 states and 961 transitions. Second operand 9 states. [2020-09-21 11:33:31,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:31,108 INFO L93 Difference]: Finished difference Result 1518 states and 2121 transitions. [2020-09-21 11:33:31,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:33:31,109 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-09-21 11:33:31,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:31,116 INFO L225 Difference]: With dead ends: 1518 [2020-09-21 11:33:31,116 INFO L226 Difference]: Without dead ends: 848 [2020-09-21 11:33:31,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:33:31,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2020-09-21 11:33:31,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 751. [2020-09-21 11:33:31,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2020-09-21 11:33:31,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 980 transitions. [2020-09-21 11:33:31,199 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 980 transitions. Word has length 66 [2020-09-21 11:33:31,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:31,199 INFO L479 AbstractCegarLoop]: Abstraction has 751 states and 980 transitions. [2020-09-21 11:33:31,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:33:31,200 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 980 transitions. [2020-09-21 11:33:31,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-21 11:33:31,201 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:31,201 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] [2020-09-21 11:33:31,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:33:31,202 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:31,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:31,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1347703966, now seen corresponding path program 1 times [2020-09-21 11:33:31,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:31,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898451896] [2020-09-21 11:33:31,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:31,321 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:31,322 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:31,322 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:31,322 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:31,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-21 11:33:31,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:31,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-21 11:33:31,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:31,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:33:31,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:33:31,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 11:33:31,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:31,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:31,412 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:31,412 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:31,412 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:31,412 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:31,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:31,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:31,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:31,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:31,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:31,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:31,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:31,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:31,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:31,445 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:31,445 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:31,446 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:31,446 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:31,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:31,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:31,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:33:31,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:31,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:31,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:31,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:33:31,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:31,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:31,466 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:31,467 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:31,467 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:31,467 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:31,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:31,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:31,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:31,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:31,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:31,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:31,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:31,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:31,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:33:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:31,474 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:31,475 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:31,475 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:31,475 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:31,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:31,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:31,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:31,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:31,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:31,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:31,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:31,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:31,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:33:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:31,483 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:31,483 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:31,483 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:31,483 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:31,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:31,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:31,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:31,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:31,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:31,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:33:31,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:31,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:31,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:31,490 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:31,490 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:31,490 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:31,491 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:31,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:31,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:31,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:31,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:31,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:31,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:31,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:31,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:31,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:31,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:31,496 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:31,496 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:31,496 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:31,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:31,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:31,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:31,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:31,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:31,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:31,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:31,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:31,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:31,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:31,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [898451896] [2020-09-21 11:33:31,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:31,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:33:31,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018364883] [2020-09-21 11:33:31,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:33:31,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:31,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:33:31,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:33:31,509 INFO L87 Difference]: Start difference. First operand 751 states and 980 transitions. Second operand 6 states. [2020-09-21 11:33:32,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:32,328 INFO L93 Difference]: Finished difference Result 1368 states and 1861 transitions. [2020-09-21 11:33:32,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:33:32,329 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-09-21 11:33:32,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:32,336 INFO L225 Difference]: With dead ends: 1368 [2020-09-21 11:33:32,336 INFO L226 Difference]: Without dead ends: 825 [2020-09-21 11:33:32,340 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:33:32,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2020-09-21 11:33:32,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 726. [2020-09-21 11:33:32,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 726 states. [2020-09-21 11:33:32,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 953 transitions. [2020-09-21 11:33:32,402 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 953 transitions. Word has length 66 [2020-09-21 11:33:32,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:32,402 INFO L479 AbstractCegarLoop]: Abstraction has 726 states and 953 transitions. [2020-09-21 11:33:32,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:33:32,403 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 953 transitions. [2020-09-21 11:33:32,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-21 11:33:32,405 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:32,405 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:32,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:33:32,406 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:32,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:32,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1757954899, now seen corresponding path program 1 times [2020-09-21 11:33:32,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:32,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132817761] [2020-09-21 11:33:32,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,439 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:33:32,439 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -31 [2020-09-21 11:33:32,439 FATAL L256 erpolLogProxyWrapper]: Difference in width: 31 [2020-09-21 11:33:32,440 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:33:32,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:33:32,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:32,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-21 11:33:32,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:33:32,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,501 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,502 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,502 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,502 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:32,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:32,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:32,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:32,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:32,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,529 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,529 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,529 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,530 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:32,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:32,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:32,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:32,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:32,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,544 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,544 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,545 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,545 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:32,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:32,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:32,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:32,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:32,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:33:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,550 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,550 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,550 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,550 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:32,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:32,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:32,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:32,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:32,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:33:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,579 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,580 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,580 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,580 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:32,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:32,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:32,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:32,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:33:32,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 11:33:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,588 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,589 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,589 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,589 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:32,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:32,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:32,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:32,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:32,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-21 11:33:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,596 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,597 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,597 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,597 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:32,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:32,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:32,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:33:32,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:32,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,604 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,604 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:32,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:32,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:32,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:32,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:32,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,650 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,651 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,651 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,651 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:32,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:32,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:32,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:32,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:32,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,660 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-21 11:33:32,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132817761] [2020-09-21 11:33:32,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:32,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:33:32,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554909548] [2020-09-21 11:33:32,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:33:32,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:32,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:33:32,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:33:32,668 INFO L87 Difference]: Start difference. First operand 726 states and 953 transitions. Second operand 7 states. [2020-09-21 11:33:33,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:33,583 INFO L93 Difference]: Finished difference Result 1780 states and 2439 transitions. [2020-09-21 11:33:33,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:33:33,583 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 86 [2020-09-21 11:33:33,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:33,592 INFO L225 Difference]: With dead ends: 1780 [2020-09-21 11:33:33,593 INFO L226 Difference]: Without dead ends: 887 [2020-09-21 11:33:33,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:33:33,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2020-09-21 11:33:33,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 826. [2020-09-21 11:33:33,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 826 states. [2020-09-21 11:33:33,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1081 transitions. [2020-09-21 11:33:33,672 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1081 transitions. Word has length 86 [2020-09-21 11:33:33,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:33,674 INFO L479 AbstractCegarLoop]: Abstraction has 826 states and 1081 transitions. [2020-09-21 11:33:33,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:33:33,674 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1081 transitions. [2020-09-21 11:33:33,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-09-21 11:33:33,676 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:33,676 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:33,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:33:33,677 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:33,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:33,677 INFO L82 PathProgramCache]: Analyzing trace with hash -232030383, now seen corresponding path program 1 times [2020-09-21 11:33:33,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:33,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143102521] [2020-09-21 11:33:33,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,726 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,726 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,726 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,726 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-21 11:33:33,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:33:33,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:33:33,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-21 11:33:33,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-21 11:33:33,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:33,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,803 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,803 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,803 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,803 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:33,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:33,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:33,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:33,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:33,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:33,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,830 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,830 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,830 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,830 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:33,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:33:33,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:33,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:33,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:33,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:33,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:33,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,851 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,852 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,852 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,852 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:33,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:33,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:33,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:33,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:33,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:33,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:33:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,857 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,858 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,858 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,858 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:33,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:33,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:33,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:33,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:33,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:33,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:33:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,889 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,890 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,890 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,890 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-21 11:33:33,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:33,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:33,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:33,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:33:33,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:33,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-21 11:33:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,906 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,906 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,907 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,907 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:33,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:33,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:33,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:33,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-21 11:33:33,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:33,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,916 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,916 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,916 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,917 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:33,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:33,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:33,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:33,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:33,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:33,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:33,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,923 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,924 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,924 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,924 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:33,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:33,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:33,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:33,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:33,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:33,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-09-21 11:33:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,938 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,939 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,939 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,939 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:33,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:33,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:33,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:33,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-21 11:33:33,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:33,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,949 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,950 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,950 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,950 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:33,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:33,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:33,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:33,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:33,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:33,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:33,956 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:33,956 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:33,957 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:33,957 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:33,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:33,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:33,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:33,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:33,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:33,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:33,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:33,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:33,983 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-21 11:33:33,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [143102521] [2020-09-21 11:33:33,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:33,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:33:33,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820122462] [2020-09-21 11:33:33,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:33:33,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:33,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:33:33,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:33:33,988 INFO L87 Difference]: Start difference. First operand 826 states and 1081 transitions. Second operand 8 states. [2020-09-21 11:33:34,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:34,944 INFO L93 Difference]: Finished difference Result 966 states and 1307 transitions. [2020-09-21 11:33:34,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:33:34,944 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-09-21 11:33:34,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:34,952 INFO L225 Difference]: With dead ends: 966 [2020-09-21 11:33:34,952 INFO L226 Difference]: Without dead ends: 963 [2020-09-21 11:33:34,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:33:34,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2020-09-21 11:33:35,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 825. [2020-09-21 11:33:35,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2020-09-21 11:33:35,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1078 transitions. [2020-09-21 11:33:35,031 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1078 transitions. Word has length 98 [2020-09-21 11:33:35,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:35,032 INFO L479 AbstractCegarLoop]: Abstraction has 825 states and 1078 transitions. [2020-09-21 11:33:35,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:33:35,032 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1078 transitions. [2020-09-21 11:33:35,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-21 11:33:35,036 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:35,036 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:35,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:33:35,037 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:35,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:35,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1396688396, now seen corresponding path program 1 times [2020-09-21 11:33:35,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:35,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [458593411] [2020-09-21 11:33:35,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,204 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,205 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,205 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,205 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-21 11:33:35,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-21 11:33:35,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:33:35,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:33:35,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-21 11:33:35,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:35,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,331 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,331 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,331 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,331 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:35,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:35,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:35,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:35,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:35,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,365 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,365 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,365 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,366 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:35,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:33:35,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:35,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:33:35,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:35,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,388 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,389 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,389 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,389 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:35,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:35,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:35,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:35,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:35,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:33:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,397 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,397 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,397 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,397 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:35,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:35,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:35,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:35,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:35,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:33:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,444 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,444 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,444 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,444 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-21 11:33:35,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:33:35,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:35,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:33:35,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 11:33:35,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:35,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-21 11:33:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,496 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,496 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,496 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:35,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:35,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:35,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-21 11:33:35,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:35,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,504 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,505 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:35,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:35,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:35,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:35,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:35,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,510 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,510 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,510 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,510 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:35,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:35,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:35,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:35,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:35,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-09-21 11:33:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,522 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,523 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,523 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:35,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:35,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:35,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-21 11:33:35,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:35,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,531 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,531 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,531 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,531 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:35,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:35,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:35,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:35,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:35,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:35,536 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:35,537 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:35,537 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:35,537 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:35,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:35,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:35,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:35,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:35,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:35,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:35,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:35,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:35,555 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-21 11:33:35,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [458593411] [2020-09-21 11:33:35,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:33:35,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:33:35,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296557809] [2020-09-21 11:33:35,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:33:35,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:35,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:33:35,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:33:35,558 INFO L87 Difference]: Start difference. First operand 825 states and 1078 transitions. Second operand 10 states. [2020-09-21 11:33:37,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:37,984 INFO L93 Difference]: Finished difference Result 1889 states and 3181 transitions. [2020-09-21 11:33:37,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 11:33:37,985 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 99 [2020-09-21 11:33:37,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:38,001 INFO L225 Difference]: With dead ends: 1889 [2020-09-21 11:33:38,001 INFO L226 Difference]: Without dead ends: 1886 [2020-09-21 11:33:38,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:33:38,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1886 states. [2020-09-21 11:33:38,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1886 to 1699. [2020-09-21 11:33:38,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1699 states. [2020-09-21 11:33:38,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2648 transitions. [2020-09-21 11:33:38,242 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2648 transitions. Word has length 99 [2020-09-21 11:33:38,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:38,243 INFO L479 AbstractCegarLoop]: Abstraction has 1699 states and 2648 transitions. [2020-09-21 11:33:38,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:33:38,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2648 transitions. [2020-09-21 11:33:38,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-09-21 11:33:38,254 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:38,254 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:38,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:33:38,255 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:38,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:38,255 INFO L82 PathProgramCache]: Analyzing trace with hash 83738947, now seen corresponding path program 2 times [2020-09-21 11:33:38,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:38,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [253870214] [2020-09-21 11:33:38,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,293 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,294 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,294 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,294 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-21 11:33:38,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:38,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:38,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-21 11:33:38,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-21 11:33:38,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:38,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,356 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,357 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,357 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,357 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:38,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,380 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,381 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,381 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,381 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:38,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,394 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,394 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,395 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,395 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:38,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:33:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,399 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,400 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,400 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,400 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:38,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:33:38,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:33:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,431 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,432 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,432 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,432 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-21 11:33:38,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:38,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:38,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:33:38,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-21 11:33:38,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-21 11:33:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,457 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,457 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,457 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,458 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:38,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:38,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-21 11:33:38,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,468 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,468 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,469 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,469 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:38,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,473 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,474 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,474 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,474 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:38,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:33:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,482 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,482 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,483 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,483 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:38,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:33:38,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,489 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,490 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,490 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,490 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:38,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,496 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:38,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-09-21 11:33:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,506 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,506 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,507 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,507 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:38,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:33:38,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,514 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,514 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,515 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,515 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:38,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,521 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,521 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,521 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,521 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:38,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,540 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-09-21 11:33:38,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [253870214] [2020-09-21 11:33:38,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:38,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:33:38,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113514633] [2020-09-21 11:33:38,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:33:38,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:38,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:33:38,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:33:38,543 INFO L87 Difference]: Start difference. First operand 1699 states and 2648 transitions. Second operand 7 states. [2020-09-21 11:33:39,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:39,302 INFO L93 Difference]: Finished difference Result 2815 states and 4584 transitions. [2020-09-21 11:33:39,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:33:39,304 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2020-09-21 11:33:39,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:39,316 INFO L225 Difference]: With dead ends: 2815 [2020-09-21 11:33:39,317 INFO L226 Difference]: Without dead ends: 1436 [2020-09-21 11:33:39,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:33:39,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2020-09-21 11:33:39,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1352. [2020-09-21 11:33:39,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2020-09-21 11:33:39,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1944 transitions. [2020-09-21 11:33:39,516 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1944 transitions. Word has length 125 [2020-09-21 11:33:39,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:39,517 INFO L479 AbstractCegarLoop]: Abstraction has 1352 states and 1944 transitions. [2020-09-21 11:33:39,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:33:39,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1944 transitions. [2020-09-21 11:33:39,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-21 11:33:39,522 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:39,522 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 11:33:39,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:33:39,523 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:39,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:39,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1218823465, now seen corresponding path program 1 times [2020-09-21 11:33:39,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:39,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023158630] [2020-09-21 11:33:39,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,568 FATAL L256 erpolLogProxyWrapper]: Difference in size: 8 [2020-09-21 11:33:39,568 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -70 [2020-09-21 11:33:39,568 FATAL L256 erpolLogProxyWrapper]: Difference in width: 70 [2020-09-21 11:33:39,569 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-21 11:33:39,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:33:39,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:39,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-09-21 11:33:39,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:33:39,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,629 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,629 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,629 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,629 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:39,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,656 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,657 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,657 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,657 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:39,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,672 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,672 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,673 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,673 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:39,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:33:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,677 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,677 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,678 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,678 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:39,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:33:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,709 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,710 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,710 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,710 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-21 11:33:39,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:39,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:39,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-21 11:33:39,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-21 11:33:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,721 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,722 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,722 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,722 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:39,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,729 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,729 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,730 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,730 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:39,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,735 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,735 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,735 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,735 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:39,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-21 11:33:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,743 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,743 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,743 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,743 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:39,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 11:33:39,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:33:39,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-21 11:33:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,761 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,761 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,762 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,762 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:33:39,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-21 11:33:39,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:39,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:33:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,775 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,775 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,775 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,775 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:39,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:39,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,783 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,784 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,784 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,785 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:39,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:39,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,791 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,792 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,792 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,792 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:39,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:39,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-21 11:33:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,803 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,803 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,803 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,804 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:39,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:33:39,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,810 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,811 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,811 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,811 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:39,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:39,816 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:39,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:39,817 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:39,817 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:39,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:39,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:39,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:39,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:39,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:39,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:39,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:39,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:39,859 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-09-21 11:33:39,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1023158630] [2020-09-21 11:33:39,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:33:39,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:33:39,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127669813] [2020-09-21 11:33:39,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:33:39,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:39,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:33:39,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:33:39,862 INFO L87 Difference]: Start difference. First operand 1352 states and 1944 transitions. Second operand 8 states. [2020-09-21 11:33:40,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:40,841 INFO L93 Difference]: Finished difference Result 1700 states and 2462 transitions. [2020-09-21 11:33:40,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:33:40,842 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-21 11:33:40,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:40,844 INFO L225 Difference]: With dead ends: 1700 [2020-09-21 11:33:40,844 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:33:40,853 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:33:40,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:33:40,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:33:40,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:33:40,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:33:40,854 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 142 [2020-09-21 11:33:40,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:40,855 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:33:40,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:33:40,855 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:33:40,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:33:40,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-21 11:33:40,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:33:41,520 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2020-09-21 11:33:41,682 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2020-09-21 11:33:43,199 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2020-09-21 11:33:43,564 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-09-21 11:33:43,719 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2020-09-21 11:33:44,670 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2020-09-21 11:33:44,859 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2020-09-21 11:33:45,287 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 98 [2020-09-21 11:33:47,771 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2020-09-21 11:33:47,889 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 94 [2020-09-21 11:33:48,250 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 98 [2020-09-21 11:33:49,202 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 59 [2020-09-21 11:33:49,401 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 91 [2020-09-21 11:33:49,602 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 59 [2020-09-21 11:33:49,784 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 91 [2020-09-21 11:33:49,958 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 59 [2020-09-21 11:33:50,521 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 116 [2020-09-21 11:33:50,804 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 116 [2020-09-21 11:33:51,108 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2020-09-21 11:33:51,375 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 116 [2020-09-21 11:33:51,653 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 116 [2020-09-21 11:33:52,102 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2020-09-21 11:33:52,548 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 98 [2020-09-21 11:33:54,125 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 93 [2020-09-21 11:33:54,338 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2020-09-21 11:33:54,639 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2020-09-21 11:33:54,841 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2020-09-21 11:33:55,160 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2020-09-21 11:33:55,940 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 88 [2020-09-21 11:33:56,162 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2020-09-21 11:33:56,446 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-09-21 11:33:56,679 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2020-09-21 11:33:57,033 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 88 [2020-09-21 11:33:57,217 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2020-09-21 11:33:57,495 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-09-21 11:33:57,718 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2020-09-21 11:33:58,048 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 88 [2020-09-21 11:33:58,971 WARN L193 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2020-09-21 11:33:59,072 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-09-21 11:33:59,942 WARN L193 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2020-09-21 11:34:00,168 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 67 [2020-09-21 11:34:00,317 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2020-09-21 11:34:01,457 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 103 DAG size of output: 72 [2020-09-21 11:34:02,247 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 57 [2020-09-21 11:34:03,456 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 127 DAG size of output: 65 [2020-09-21 11:34:04,099 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 68 [2020-09-21 11:34:04,425 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 33 [2020-09-21 11:34:05,272 WARN L193 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2020-09-21 11:34:05,426 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2020-09-21 11:34:05,614 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2020-09-21 11:34:07,974 WARN L193 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 155 DAG size of output: 121 [2020-09-21 11:34:08,093 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2020-09-21 11:34:08,483 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2020-09-21 11:34:08,939 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-09-21 11:34:11,438 WARN L193 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 160 DAG size of output: 121 [2020-09-21 11:34:13,095 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 129 DAG size of output: 99 [2020-09-21 11:34:14,087 WARN L193 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 82