/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_3.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:33:17,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:33:17,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:33:17,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:33:17,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:33:17,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:33:17,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:33:17,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:33:17,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:33:17,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:33:17,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:33:17,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:33:17,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:33:17,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:33:17,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:33:17,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:33:17,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:33:17,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:33:17,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:33:17,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:33:17,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:33:17,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:33:17,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:33:17,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:33:17,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:33:17,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:33:17,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:33:17,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:33:17,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:33:17,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:33:17,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:33:17,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:33:17,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:33:17,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:33:17,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:33:17,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:33:17,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:33:17,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:33:17,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:33:17,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:33:17,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:33:17,891 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 11:33:17,953 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:33:17,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:33:17,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:33:17,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:33:17,956 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:33:17,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:33:17,958 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:33:17,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:33:17,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:33:17,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:33:17,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:33:17,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:33:17,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:33:17,959 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:33:17,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:33:17,960 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:33:17,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:33:17,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:33:17,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:33:17,961 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:33:17,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:33:17,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:33:17,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:33:17,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:33:17,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:33:17,963 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:33:17,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:33:17,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:33:17,964 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:33:17,964 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 11:33:18,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:33:18,522 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:33:18,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:33:18,531 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:33:18,532 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:33:18,533 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2020-09-21 11:33:18,618 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3926c3b1/2f5b0e6270f44d1fa1a2812d545517b8/FLAG505d8be35 [2020-09-21 11:33:19,138 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:33:19,141 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2020-09-21 11:33:19,153 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3926c3b1/2f5b0e6270f44d1fa1a2812d545517b8/FLAG505d8be35 [2020-09-21 11:33:19,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3926c3b1/2f5b0e6270f44d1fa1a2812d545517b8 [2020-09-21 11:33:19,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:33:19,470 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:33:19,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:33:19,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:33:19,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:33:19,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:33:19" (1/1) ... [2020-09-21 11:33:19,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1afef70d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:19, skipping insertion in model container [2020-09-21 11:33:19,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:33:19" (1/1) ... [2020-09-21 11:33:19,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:33:19,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:33:19,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:33:19,873 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:33:19,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:33:20,026 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:33:20,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20 WrapperNode [2020-09-21 11:33:20,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:33:20,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:33:20,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:33:20,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:33:20,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20" (1/1) ... [2020-09-21 11:33:20,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20" (1/1) ... [2020-09-21 11:33:20,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20" (1/1) ... [2020-09-21 11:33:20,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20" (1/1) ... [2020-09-21 11:33:20,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20" (1/1) ... [2020-09-21 11:33:20,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20" (1/1) ... [2020-09-21 11:33:20,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20" (1/1) ... [2020-09-21 11:33:20,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:33:20,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:33:20,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:33:20,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:33:20,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20" (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 11:33:20,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:33:20,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:33:20,187 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-21 11:33:20,187 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2020-09-21 11:33:20,187 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2020-09-21 11:33:20,187 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2020-09-21 11:33:20,187 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2020-09-21 11:33:20,188 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2020-09-21 11:33:20,188 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2020-09-21 11:33:20,189 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-09-21 11:33:20,189 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-21 11:33:20,189 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-21 11:33:20,189 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-09-21 11:33:20,189 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-09-21 11:33:20,190 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-09-21 11:33:20,191 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-09-21 11:33:20,191 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-09-21 11:33:20,191 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-21 11:33:20,191 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-21 11:33:20,191 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-21 11:33:20,192 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-21 11:33:20,192 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:33:20,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:33:20,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:33:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-21 11:33:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2020-09-21 11:33:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2020-09-21 11:33:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2020-09-21 11:33:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2020-09-21 11:33:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2020-09-21 11:33:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2020-09-21 11:33:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-09-21 11:33:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-21 11:33:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-21 11:33:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-09-21 11:33:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-09-21 11:33:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-09-21 11:33:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-09-21 11:33:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-09-21 11:33:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-21 11:33:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-21 11:33:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-21 11:33:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-21 11:33:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:33:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:33:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:33:20,816 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := ~a~0; [2020-09-21 11:33:20,817 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2020-09-21 11:33:20,837 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:33:20,837 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-21 11:33:20,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:33:20 BoogieIcfgContainer [2020-09-21 11:33:20,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:33:20,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:33:20,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:33:20,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:33:20,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:33:19" (1/3) ... [2020-09-21 11:33:20,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d1fde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:33:20, skipping insertion in model container [2020-09-21 11:33:20,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:20" (2/3) ... [2020-09-21 11:33:20,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d1fde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:33:20, skipping insertion in model container [2020-09-21 11:33:20,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:33:20" (3/3) ... [2020-09-21 11:33:20,854 INFO L109 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2020-09-21 11:33:20,866 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:33:20,878 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:33:20,899 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:33:20,930 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:33:20,930 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:33:20,931 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:33:20,931 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:33:20,931 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:33:20,931 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:33:20,931 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:33:20,932 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:33:20,958 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-09-21 11:33:20,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 11:33:20,971 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:20,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:20,973 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:20,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:20,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1427944937, now seen corresponding path program 1 times [2020-09-21 11:33:20,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:20,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1701147984] [2020-09-21 11:33:20,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,439 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,440 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,440 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,440 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-21 11:33:21,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-21 11:33:21,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:33:21,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:33:21,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 11:33:21,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:21,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:21,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,673 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,674 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,674 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,674 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:21,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:21,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:21,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:21,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:21,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:21,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,733 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,733 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,734 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,734 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:21,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:33:21,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:21,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:21,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:33:21,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:21,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,794 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,794 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,795 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,795 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 11:33:21,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:33:21,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:21,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:33:21,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:33:21,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:21,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:33:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,835 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,835 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,836 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,836 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:21,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:21,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:21,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:21,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:21,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:21,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 11:33:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,865 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:21,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:33:21,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:21,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:33:21,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:33:21,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:21,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:33:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,890 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,890 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:21,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:21,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:21,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:33:21,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:21,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:21,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,901 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,902 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,902 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,902 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:21,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:21,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:21,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:21,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:21,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:21,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,909 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,910 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,910 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,910 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:21,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:21,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:21,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:21,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:21,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:21,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 11:33:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,921 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,921 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,921 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,921 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:21,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:21,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:21,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:33:21,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:21,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:21,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-21 11:33:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:21,929 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:21,930 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:21,930 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:21,930 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:21,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:21,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:21,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:21,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:21,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:21,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:21,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:21,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:21,949 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 11:33:21,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1701147984] [2020-09-21 11:33:21,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:21,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 11:33:21,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087890165] [2020-09-21 11:33:21,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:33:21,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:21,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:33:21,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:33:21,981 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 10 states. [2020-09-21 11:33:25,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:25,786 INFO L93 Difference]: Finished difference Result 608 states and 1000 transitions. [2020-09-21 11:33:25,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 11:33:25,795 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2020-09-21 11:33:25,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:25,819 INFO L225 Difference]: With dead ends: 608 [2020-09-21 11:33:25,819 INFO L226 Difference]: Without dead ends: 456 [2020-09-21 11:33:25,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=165, Invalid=435, Unknown=0, NotChecked=0, Total=600 [2020-09-21 11:33:25,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-09-21 11:33:25,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 271. [2020-09-21 11:33:25,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-09-21 11:33:25,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 365 transitions. [2020-09-21 11:33:25,967 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 365 transitions. Word has length 78 [2020-09-21 11:33:25,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:25,968 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 365 transitions. [2020-09-21 11:33:25,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:33:25,968 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 365 transitions. [2020-09-21 11:33:25,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 11:33:25,974 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:25,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:25,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:33:25,975 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:25,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:25,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1440144215, now seen corresponding path program 1 times [2020-09-21 11:33:25,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:25,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409402739] [2020-09-21 11:33:25,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,071 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-21 11:33:26,071 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,071 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,072 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-21 11:33:26,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-21 11:33:26,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:33:26,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:33:26,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:33:26,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,172 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,173 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,173 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,173 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:26,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:26,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:26,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:26,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:26,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,213 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,213 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,213 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,214 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:26,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:33:26,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:26,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:26,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:33:26,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,241 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,241 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,241 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,241 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:26,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:33:26,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:26,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:33:26,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:33:26,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:33:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,277 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,278 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,278 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,278 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:26,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:26,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:26,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:26,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:26,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 11:33:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,306 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,307 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,307 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,307 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:26,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:33:26,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:26,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:33:26,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:33:26,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:33:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,342 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,342 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,342 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,343 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:26,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:26,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:26,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:33:26,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:26,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,351 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,351 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,351 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,352 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:26,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:26,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:26,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:26,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:26,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,357 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,358 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,358 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,358 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:26,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:26,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:26,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:26,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:26,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 11:33:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,365 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,365 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,365 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,366 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:26,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:26,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:26,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:33:26,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:26,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-21 11:33:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,371 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,372 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,372 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,372 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:26,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:26,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:26,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:26,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:26,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,384 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 11:33:26,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409402739] [2020-09-21 11:33:26,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:26,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-21 11:33:26,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641916757] [2020-09-21 11:33:26,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:33:26,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:26,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:33:26,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:33:26,389 INFO L87 Difference]: Start difference. First operand 271 states and 365 transitions. Second operand 11 states. [2020-09-21 11:33:29,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:29,944 INFO L93 Difference]: Finished difference Result 1080 states and 1639 transitions. [2020-09-21 11:33:29,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-21 11:33:29,945 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 78 [2020-09-21 11:33:29,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:29,956 INFO L225 Difference]: With dead ends: 1080 [2020-09-21 11:33:29,956 INFO L226 Difference]: Without dead ends: 834 [2020-09-21 11:33:29,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2020-09-21 11:33:29,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-09-21 11:33:30,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 544. [2020-09-21 11:33:30,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2020-09-21 11:33:30,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 739 transitions. [2020-09-21 11:33:30,052 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 739 transitions. Word has length 78 [2020-09-21 11:33:30,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:30,052 INFO L479 AbstractCegarLoop]: Abstraction has 544 states and 739 transitions. [2020-09-21 11:33:30,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:33:30,052 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 739 transitions. [2020-09-21 11:33:30,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 11:33:30,057 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:30,057 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:30,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:33:30,057 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:30,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:30,058 INFO L82 PathProgramCache]: Analyzing trace with hash -562831895, now seen corresponding path program 1 times [2020-09-21 11:33:30,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:30,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815292346] [2020-09-21 11:33:30,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,103 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,104 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,104 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,104 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-21 11:33:30,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:33:30,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:30,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:33:30,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-21 11:33:30,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,198 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,199 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,199 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,199 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:30,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:30,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:30,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:30,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:30,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,236 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,236 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,237 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,237 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:30,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:30,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:30,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:30,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:33:30,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,260 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,260 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,260 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,260 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:30,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:30,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:30,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:30,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:33:30,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:33:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,279 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,279 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,279 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:30,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:30,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:30,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:30,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:30,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 11:33:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,299 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,299 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,299 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,300 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:30,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:30,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:30,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:30,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:30,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:33:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,311 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,311 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,312 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:30,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:30,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:30,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:30,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:33:30,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,334 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,334 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,334 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,334 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:30,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:30,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:30,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:30,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:33:30,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:30,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,343 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,344 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,344 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,344 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:30,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:30,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:30,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:30,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:33:30,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 11:33:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,351 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,351 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,352 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,352 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:30,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:30,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:30,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:33:30,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:30,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-21 11:33:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,357 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,357 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,358 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,358 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:30,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:30,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:30,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:30,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:30,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,368 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 11:33:30,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815292346] [2020-09-21 11:33:30,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:30,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:33:30,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587113258] [2020-09-21 11:33:30,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:33:30,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:30,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:33:30,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:33:30,371 INFO L87 Difference]: Start difference. First operand 544 states and 739 transitions. Second operand 9 states. [2020-09-21 11:33:34,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:34,095 INFO L93 Difference]: Finished difference Result 1958 states and 2868 transitions. [2020-09-21 11:33:34,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 11:33:34,096 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-09-21 11:33:34,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:34,107 INFO L225 Difference]: With dead ends: 1958 [2020-09-21 11:33:34,107 INFO L226 Difference]: Without dead ends: 1455 [2020-09-21 11:33:34,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2020-09-21 11:33:34,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2020-09-21 11:33:34,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1055. [2020-09-21 11:33:34,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1055 states. [2020-09-21 11:33:34,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1415 transitions. [2020-09-21 11:33:34,220 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1415 transitions. Word has length 78 [2020-09-21 11:33:34,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:34,220 INFO L479 AbstractCegarLoop]: Abstraction has 1055 states and 1415 transitions. [2020-09-21 11:33:34,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:33:34,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1415 transitions. [2020-09-21 11:33:34,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-21 11:33:34,223 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:34,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:34,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:33:34,224 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:34,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:34,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1957278451, now seen corresponding path program 1 times [2020-09-21 11:33:34,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:34,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510308331] [2020-09-21 11:33:34,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,260 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,260 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,260 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,260 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-21 11:33:34,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:33:34,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:34,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-21 11:33:34,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:34,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:34,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,361 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,361 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,362 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,362 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:34,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:34,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:34,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:34,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:34,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:34,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,393 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,393 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,393 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,393 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:34,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:34,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:34,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:34,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:34,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:34,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,412 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,412 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,413 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,413 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:34,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:34,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:34,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:34,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:34,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:34,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:33:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,427 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,428 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,428 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,428 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:34,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:34,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:34,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:34,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:34,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:34,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 11:33:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,461 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,461 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,462 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,462 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:34,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:34,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:34,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:34,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:34,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:34,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:33:34,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,486 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,486 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,486 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,486 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-21 11:33:34,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:33:34,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:34,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-21 11:33:34,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:34,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:34,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,577 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,577 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,578 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,578 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:33:34,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:33:34,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:34,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:34,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:33:34,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:34,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:33:34,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,625 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,625 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,625 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,626 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:34,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:34,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:34,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-21 11:33:34,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:34,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:34,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:33:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,634 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,636 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:34,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:34,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:34,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:33:34,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:34,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:34,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:33:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,643 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,643 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,643 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,643 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:34,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:34,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:34,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:34,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:34,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:34,659 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 11:33:34,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510308331] [2020-09-21 11:33:34,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:34,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-21 11:33:34,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840174806] [2020-09-21 11:33:34,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:33:34,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:34,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:33:34,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:33:34,665 INFO L87 Difference]: Start difference. First operand 1055 states and 1415 transitions. Second operand 11 states. [2020-09-21 11:33:37,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:37,612 INFO L93 Difference]: Finished difference Result 2473 states and 3507 transitions. [2020-09-21 11:33:37,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 11:33:37,612 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 79 [2020-09-21 11:33:37,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:37,623 INFO L225 Difference]: With dead ends: 2473 [2020-09-21 11:33:37,623 INFO L226 Difference]: Without dead ends: 1459 [2020-09-21 11:33:37,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2020-09-21 11:33:37,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2020-09-21 11:33:37,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1075. [2020-09-21 11:33:37,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1075 states. [2020-09-21 11:33:37,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1431 transitions. [2020-09-21 11:33:37,741 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1431 transitions. Word has length 79 [2020-09-21 11:33:37,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:37,742 INFO L479 AbstractCegarLoop]: Abstraction has 1075 states and 1431 transitions. [2020-09-21 11:33:37,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:33:37,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1431 transitions. [2020-09-21 11:33:37,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-21 11:33:37,746 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:37,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:37,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:33:37,747 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:37,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:37,747 INFO L82 PathProgramCache]: Analyzing trace with hash -2089542351, now seen corresponding path program 1 times [2020-09-21 11:33:37,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:37,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006635535] [2020-09-21 11:33:37,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:37,791 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:37,792 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:37,792 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:37,792 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:37,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-21 11:33:37,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:37,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:33:37,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:37,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:37,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:33:37,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-21 11:33:37,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:37,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:37,885 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:37,885 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:37,885 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:37,885 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:37,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:37,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:37,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:37,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:37,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:37,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:37,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:37,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:37,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:37,921 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:37,921 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:37,921 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:37,921 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:37,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:37,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:37,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:37,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:37,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:37,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:37,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:33:37,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:37,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:37,944 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:37,944 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:37,944 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:37,944 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:37,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:37,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:37,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:37,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:37,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:37,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:37,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:33:37,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:37,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:33:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:37,962 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:37,962 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:37,962 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:37,962 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:37,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:37,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:37,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:37,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:37,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:37,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:37,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:37,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:37,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 11:33:37,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:37,981 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:37,981 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:37,981 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:37,981 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:37,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:37,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:37,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:37,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:37,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:37,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:37,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:37,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:37,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:33:37,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:37,992 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:37,992 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:37,992 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:37,993 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:37,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-21 11:33:37,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:37,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:37,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:37,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:37,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-21 11:33:37,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:33:37,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,026 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,026 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,026 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,027 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:33:38,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:38,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:33:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,035 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,035 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,035 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,035 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:38,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:38,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:38,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:33:38,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:33:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,044 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,045 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,045 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,045 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:38,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:33:38,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:33:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,051 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,051 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,051 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,051 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:38,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:38,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:38,062 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 11:33:38,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1006635535] [2020-09-21 11:33:38,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:38,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:33:38,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157745826] [2020-09-21 11:33:38,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:33:38,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:38,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:33:38,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:33:38,064 INFO L87 Difference]: Start difference. First operand 1075 states and 1431 transitions. Second operand 9 states. [2020-09-21 11:33:41,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:41,799 INFO L93 Difference]: Finished difference Result 3651 states and 5255 transitions. [2020-09-21 11:33:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 11:33:41,800 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-09-21 11:33:41,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:41,825 INFO L225 Difference]: With dead ends: 3651 [2020-09-21 11:33:41,826 INFO L226 Difference]: Without dead ends: 2617 [2020-09-21 11:33:41,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2020-09-21 11:33:41,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2617 states. [2020-09-21 11:33:42,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2617 to 2085. [2020-09-21 11:33:42,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2085 states. [2020-09-21 11:33:42,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 2745 transitions. [2020-09-21 11:33:42,056 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 2745 transitions. Word has length 79 [2020-09-21 11:33:42,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:42,056 INFO L479 AbstractCegarLoop]: Abstraction has 2085 states and 2745 transitions. [2020-09-21 11:33:42,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:33:42,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 2745 transitions. [2020-09-21 11:33:42,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-21 11:33:42,061 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:42,061 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:42,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:33:42,062 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:42,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:42,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1634354534, now seen corresponding path program 1 times [2020-09-21 11:33:42,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:42,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1750649496] [2020-09-21 11:33:42,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,127 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,127 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,127 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,127 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-21 11:33:42,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:33:42,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-09-21 11:33:42,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:42,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,202 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,202 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,203 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,203 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:42,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,235 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,235 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,235 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,236 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:42,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:42,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,259 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,259 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,259 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,259 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:42,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:33:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,275 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,276 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,276 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,276 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:42,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:42,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 11:33:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,294 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,294 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,294 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,294 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:42,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:33:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,310 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,311 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,311 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,311 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:33:42,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:33:42,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:42,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:33:42,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:42,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,337 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,337 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,337 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,337 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:33:42,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:42,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:33:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,359 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,360 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,360 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,360 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:33:42,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:33:42,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:42,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:42,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:33:42,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:42,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:33:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,398 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,399 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,399 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,399 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:42,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:33:42,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-21 11:33:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,410 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,410 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,410 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,410 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:42,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:42,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:33:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,450 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,450 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,451 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:42,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:42,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-21 11:33:42,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-21 11:33:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:42,458 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:42,458 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:42,459 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:42,459 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:42,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:42,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:42,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:42,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:42,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:42,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:42,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:42,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:42,477 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-21 11:33:42,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1750649496] [2020-09-21 11:33:42,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:42,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 11:33:42,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502659885] [2020-09-21 11:33:42,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:33:42,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:42,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:33:42,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:33:42,481 INFO L87 Difference]: Start difference. First operand 2085 states and 2745 transitions. Second operand 12 states. [2020-09-21 11:33:45,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:45,702 INFO L93 Difference]: Finished difference Result 4737 states and 6594 transitions. [2020-09-21 11:33:45,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-21 11:33:45,702 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 99 [2020-09-21 11:33:45,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:45,720 INFO L225 Difference]: With dead ends: 4737 [2020-09-21 11:33:45,721 INFO L226 Difference]: Without dead ends: 2693 [2020-09-21 11:33:45,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=164, Invalid=436, Unknown=0, NotChecked=0, Total=600 [2020-09-21 11:33:45,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2020-09-21 11:33:45,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 2173. [2020-09-21 11:33:45,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2173 states. [2020-09-21 11:33:45,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2173 states to 2173 states and 2865 transitions. [2020-09-21 11:33:45,991 INFO L78 Accepts]: Start accepts. Automaton has 2173 states and 2865 transitions. Word has length 99 [2020-09-21 11:33:45,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:45,994 INFO L479 AbstractCegarLoop]: Abstraction has 2173 states and 2865 transitions. [2020-09-21 11:33:45,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:33:45,995 INFO L276 IsEmpty]: Start isEmpty. Operand 2173 states and 2865 transitions. [2020-09-21 11:33:45,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-21 11:33:45,998 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:45,998 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:45,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:33:45,999 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:45,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:45,999 INFO L82 PathProgramCache]: Analyzing trace with hash -96014504, now seen corresponding path program 1 times [2020-09-21 11:33:45,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:46,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430496236] [2020-09-21 11:33:46,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,033 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,033 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,033 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,033 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-21 11:33:46,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:46,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:46,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-09-21 11:33:46,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:46,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:46,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,106 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,106 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,106 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,106 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:46,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:46,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:46,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:46,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,137 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,138 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,138 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:46,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:46,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:46,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:46,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,157 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,157 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,158 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,158 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:46,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:46,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:46,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:46,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:33:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,174 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,174 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,174 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,174 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:46,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:46,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:46,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:46,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 11:33:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,192 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,192 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,192 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,192 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:46,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:46,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:46,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:46,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:33:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,197 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,197 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,198 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,198 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:33:46,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:33:46,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:46,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:46,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,205 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,205 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,206 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,206 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:33:46,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:46,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:46,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:46,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:33:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,212 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,212 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,212 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,212 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:33:46,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:46,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:46,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:46,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:33:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,219 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,219 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,219 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,219 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:46,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:46,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:46,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:46,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-21 11:33:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,226 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,226 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,226 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,226 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:46,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:46,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:46,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:46,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:33:46,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:46,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:33:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,259 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,259 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,259 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,259 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:46,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:46,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-21 11:33:46,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:46,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-21 11:33:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,266 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,266 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,266 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,267 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:46,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:46,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:46,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:46,279 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-21 11:33:46,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430496236] [2020-09-21 11:33:46,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:33:46,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 11:33:46,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703726797] [2020-09-21 11:33:46,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:33:46,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:46,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:33:46,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:33:46,284 INFO L87 Difference]: Start difference. First operand 2173 states and 2865 transitions. Second operand 9 states. [2020-09-21 11:33:50,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:50,983 INFO L93 Difference]: Finished difference Result 7228 states and 10644 transitions. [2020-09-21 11:33:50,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-21 11:33:50,984 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-09-21 11:33:50,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:51,016 INFO L225 Difference]: With dead ends: 7228 [2020-09-21 11:33:51,017 INFO L226 Difference]: Without dead ends: 5100 [2020-09-21 11:33:51,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=195, Invalid=561, Unknown=0, NotChecked=0, Total=756 [2020-09-21 11:33:51,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5100 states. [2020-09-21 11:33:51,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5100 to 4193. [2020-09-21 11:33:51,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4193 states. [2020-09-21 11:33:51,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4193 states to 4193 states and 5634 transitions. [2020-09-21 11:33:51,480 INFO L78 Accepts]: Start accepts. Automaton has 4193 states and 5634 transitions. Word has length 99 [2020-09-21 11:33:51,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:51,480 INFO L479 AbstractCegarLoop]: Abstraction has 4193 states and 5634 transitions. [2020-09-21 11:33:51,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:33:51,481 INFO L276 IsEmpty]: Start isEmpty. Operand 4193 states and 5634 transitions. [2020-09-21 11:33:51,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-09-21 11:33:51,487 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:51,487 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:51,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:33:51,488 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:51,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:51,488 INFO L82 PathProgramCache]: Analyzing trace with hash 477155572, now seen corresponding path program 1 times [2020-09-21 11:33:51,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:51,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [509763939] [2020-09-21 11:33:51,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:51,532 FATAL L256 erpolLogProxyWrapper]: Difference in size: 8 [2020-09-21 11:33:51,533 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -91 [2020-09-21 11:33:51,533 FATAL L256 erpolLogProxyWrapper]: Difference in width: 91 [2020-09-21 11:33:51,533 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:51,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:33:51,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:51,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:33:51,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:51,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:51,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 107 [2020-09-21 11:33:51,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:33:51,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:51,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:51,631 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:51,631 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:51,631 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:51,631 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:51,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:51,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:51,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:51,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:51,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:51,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:51,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:51,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:51,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:51,663 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:51,663 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:51,664 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:51,664 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:51,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:51,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:51,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:51,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:51,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:51,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:51,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:51,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:51,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:51,683 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:51,684 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:51,684 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:51,684 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:51,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:51,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:51,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:51,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:51,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:51,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:51,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:51,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:51,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:33:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:51,702 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:51,702 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:51,702 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:51,703 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:51,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:51,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:51,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:51,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:51,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:51,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:51,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:51,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:51,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 11:33:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:51,725 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:51,726 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:51,726 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:51,726 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:51,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:51,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:51,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:51,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:51,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:51,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:51,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:51,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:51,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:33:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:51,735 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:51,735 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:51,736 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:51,736 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:51,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:33:51,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:51,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:51,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:51,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:51,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:51,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:51,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:51,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:51,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:51,746 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:51,746 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:51,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:51,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:33:51,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:51,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:51,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:51,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:51,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:51,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:51,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:51,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:33:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:51,756 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:51,756 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:51,757 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:51,757 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:51,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:33:51,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:51,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:33:51,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:51,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:51,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:51,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:51,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:51,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:33:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:51,764 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:51,765 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:51,765 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:51,765 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:51,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:51,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:51,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:51,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:51,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:51,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:51,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-21 11:33:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:51,772 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:51,772 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:51,772 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:51,773 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:51,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:51,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:51,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:51,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:51,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:51,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:51,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:51,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:51,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-09-21 11:33:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:51,809 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:51,809 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:51,810 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:51,810 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:51,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:51,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:51,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:51,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:51,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:51,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:51,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:33:51,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:51,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-21 11:33:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:51,827 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:51,827 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:51,828 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:51,828 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:51,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:51,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:51,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:33:51,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:51,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:51,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:51,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:51,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:51,844 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 11:33:51,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [509763939] [2020-09-21 11:33:51,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:51,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:33:51,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286336916] [2020-09-21 11:33:51,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:33:51,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:51,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:33:51,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:33:51,848 INFO L87 Difference]: Start difference. First operand 4193 states and 5634 transitions. Second operand 9 states. [2020-09-21 11:33:56,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:56,887 INFO L93 Difference]: Finished difference Result 13650 states and 19879 transitions. [2020-09-21 11:33:56,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-21 11:33:56,888 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 101 [2020-09-21 11:33:56,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:56,933 INFO L225 Difference]: With dead ends: 13650 [2020-09-21 11:33:56,934 INFO L226 Difference]: Without dead ends: 7324 [2020-09-21 11:33:56,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=195, Invalid=561, Unknown=0, NotChecked=0, Total=756 [2020-09-21 11:33:56,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7324 states. [2020-09-21 11:33:57,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7324 to 6349. [2020-09-21 11:33:57,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6349 states. [2020-09-21 11:33:57,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6349 states to 6349 states and 8646 transitions. [2020-09-21 11:33:57,531 INFO L78 Accepts]: Start accepts. Automaton has 6349 states and 8646 transitions. Word has length 101 [2020-09-21 11:33:57,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:57,533 INFO L479 AbstractCegarLoop]: Abstraction has 6349 states and 8646 transitions. [2020-09-21 11:33:57,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:33:57,533 INFO L276 IsEmpty]: Start isEmpty. Operand 6349 states and 8646 transitions. [2020-09-21 11:33:57,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-09-21 11:33:57,560 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:57,560 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:57,561 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:33:57,561 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:57,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:57,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1156774892, now seen corresponding path program 1 times [2020-09-21 11:33:57,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:57,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2091812677] [2020-09-21 11:33:57,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:57,613 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-21 11:33:57,614 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -24 [2020-09-21 11:33:57,614 FATAL L256 erpolLogProxyWrapper]: Difference in width: 24 [2020-09-21 11:33:57,614 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:57,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-09-21 11:33:57,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:57,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:33:57,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:57,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:57,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-21 11:33:57,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:57,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:57,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:57,707 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:57,707 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:57,708 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:57,708 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:57,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:57,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:57,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:57,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:57,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:57,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:57,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:57,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:57,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:57,738 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:57,738 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:57,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:57,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:57,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:57,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:57,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:57,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:57,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:57,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:57,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:57,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:57,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:57,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:57,762 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:57,762 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:57,762 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:57,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:57,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:57,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:57,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:57,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:57,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:57,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:57,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:57,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:57,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:33:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:57,783 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:57,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:57,784 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:57,784 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:57,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:57,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:57,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:57,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:57,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:57,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:57,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:57,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:57,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 11:33:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:57,806 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:57,806 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:57,806 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:57,807 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:57,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:57,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:57,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:57,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:57,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:57,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:57,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:57,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:57,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:33:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:57,813 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:57,813 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:57,813 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:57,814 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:57,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:33:57,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:57,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:57,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:57,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:57,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:57,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:57,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:57,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:57,820 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:57,821 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:57,821 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:57,821 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:57,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:33:57,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:57,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:57,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:57,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:57,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:57,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:33:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:57,829 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:57,830 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:57,830 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:57,830 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:57,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:33:57,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:57,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:57,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:57,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:57,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:57,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:57,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:57,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:33:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:57,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:57,838 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:57,839 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:57,839 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:57,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:57,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:57,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:57,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:57,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:57,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:57,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:57,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:57,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 11:33:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:57,902 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:57,902 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:57,903 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:57,903 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:57,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-21 11:33:57,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:57,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:33:57,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:57,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:57,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-21 11:33:57,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:57,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:57,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:33:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:57,943 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:57,944 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:57,944 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:57,945 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:57,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:57,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:57,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:57,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:57,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:57,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:57,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:57,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:57,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-21 11:33:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:57,975 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:57,976 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:57,976 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:57,976 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:57,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:57,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:57,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:57,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:57,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:57,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:57,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:57,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:57,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:33:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:57,988 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:57,988 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:57,988 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:57,989 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:57,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:57,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:57,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:33:57,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:57,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:57,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:57,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:57,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:58,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 11:33:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:58,030 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:58,030 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:58,030 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:58,031 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:58,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:58,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:58,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:58,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:58,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:58,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:33:58,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:58,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:58,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-09-21 11:33:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:58,038 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:58,038 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:58,038 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:58,039 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:58,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:58,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:58,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:58,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:58,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:58,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:33:58,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:58,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:58,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 11:33:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:58,046 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:58,046 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:58,046 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:58,046 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:58,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-21 11:33:58,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:58,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:58,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:58,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:58,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-21 11:33:58,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:58,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:58,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:58,054 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:58,055 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:58,055 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:58,055 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:58,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:33:58,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:58,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:58,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:58,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:58,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:58,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:58,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:58,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:33:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:58,062 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:58,063 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:58,063 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:58,063 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:58,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:58,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:58,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:58,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:58,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:58,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:58,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:58,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:58,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-21 11:33:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:58,077 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:58,077 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:58,078 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:58,078 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:58,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:58,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:58,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:58,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:58,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:58,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:33:58,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:58,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:58,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-21 11:33:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:58,085 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:58,085 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:58,086 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:58,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:58,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:58,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:58,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:58,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:58,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:58,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:58,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:58,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:58,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-21 11:33:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:58,095 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:58,095 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:58,095 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:58,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:58,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 11:33:58,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:58,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:58,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:58,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:58,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:33:58,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:58,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:58,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:58,103 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:58,103 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:58,104 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:58,104 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:58,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:58,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:58,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:58,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:58,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:58,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:58,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:58,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:58,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 11:33:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:58,112 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:58,112 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:58,112 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:58,113 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:58,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:58,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:58,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:58,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:58,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:58,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:58,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:58,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:58,329 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-09-21 11:33:58,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2091812677] [2020-09-21 11:33:58,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:33:58,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-21 11:33:58,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124813727] [2020-09-21 11:33:58,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 11:33:58,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:58,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 11:33:58,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:33:58,337 INFO L87 Difference]: Start difference. First operand 6349 states and 8646 transitions. Second operand 13 states. [2020-09-21 11:34:02,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:34:02,123 INFO L93 Difference]: Finished difference Result 13551 states and 19444 transitions. [2020-09-21 11:34:02,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-21 11:34:02,124 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 178 [2020-09-21 11:34:02,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:34:02,169 INFO L225 Difference]: With dead ends: 13551 [2020-09-21 11:34:02,169 INFO L226 Difference]: Without dead ends: 7271 [2020-09-21 11:34:02,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=275, Invalid=915, Unknown=0, NotChecked=0, Total=1190 [2020-09-21 11:34:02,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7271 states. [2020-09-21 11:34:02,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7271 to 5640. [2020-09-21 11:34:02,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5640 states. [2020-09-21 11:34:02,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5640 states to 5640 states and 7470 transitions. [2020-09-21 11:34:02,762 INFO L78 Accepts]: Start accepts. Automaton has 5640 states and 7470 transitions. Word has length 178 [2020-09-21 11:34:02,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:34:02,762 INFO L479 AbstractCegarLoop]: Abstraction has 5640 states and 7470 transitions. [2020-09-21 11:34:02,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 11:34:02,762 INFO L276 IsEmpty]: Start isEmpty. Operand 5640 states and 7470 transitions. [2020-09-21 11:34:02,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-21 11:34:02,785 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:34:02,785 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:34:02,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:34:02,786 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:34:02,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:34:02,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1651368432, now seen corresponding path program 1 times [2020-09-21 11:34:02,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:34:02,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1391621056] [2020-09-21 11:34:02,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:34:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:02,811 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:02,812 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:02,812 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:02,812 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:02,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-09-21 11:34:02,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:02,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:02,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:02,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:02,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:34:02,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:34:02,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:02,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:34:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:02,892 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:02,892 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:02,892 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:02,892 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:02,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:02,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:02,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:02,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:02,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:02,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:02,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:02,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:02,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:34:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:02,925 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:02,925 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:02,926 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:02,926 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:02,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:02,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:02,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:02,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:02,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:02,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:02,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:34:02,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:02,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:34:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:02,946 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:02,946 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:02,946 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:02,947 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:02,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:02,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:02,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:02,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:02,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:02,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:02,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:34:02,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:02,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:34:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:02,966 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:02,966 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:02,966 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:02,966 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:02,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:02,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:02,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:02,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:02,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:02,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:34:02,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:34:02,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:02,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 11:34:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:02,997 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:02,997 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:02,997 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:02,997 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:02,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:02,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:02,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:02,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:02,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:02,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:34:02,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:02,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:03,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:34:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:03,005 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:03,005 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:03,005 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:03,005 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:03,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:34:03,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:03,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:03,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:03,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:03,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-21 11:34:03,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:03,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:03,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:03,013 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:03,014 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:03,014 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:03,014 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:03,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:34:03,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:03,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:03,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:03,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:03,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:03,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:03,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:03,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:34:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:03,020 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:03,020 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:03,021 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:03,021 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:03,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:34:03,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:03,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:03,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:03,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:03,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:03,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:03,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:03,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:34:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:03,036 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:03,037 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:03,037 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:03,037 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:03,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:03,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:03,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:03,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:03,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:03,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:34:03,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:03,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:03,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 11:34:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:03,095 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:03,095 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:03,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:03,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:03,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-21 11:34:03,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:03,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:03,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:03,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:34:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:03,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:03,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:34:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:03,108 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:03,108 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:03,109 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:03,109 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:03,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:34:03,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:03,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:03,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:03,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:03,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:03,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:03,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:03,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-21 11:34:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:03,151 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:03,151 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:03,152 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:03,153 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:03,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:34:03,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:03,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:03,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:03,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:03,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:03,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:03,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:03,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:34:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:03,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:03,163 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:03,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:03,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:03,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:34:03,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:03,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:03,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:03,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:03,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:03,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:03,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:03,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-21 11:34:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:03,175 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:03,176 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:03,176 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:03,176 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:03,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:03,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:03,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:34:03,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:03,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:03,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:34:03,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:03,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:03,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-09-21 11:34:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:03,183 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:03,184 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:03,184 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:03,184 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:03,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:03,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:03,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:03,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:34:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:03,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:03,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-21 11:34:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:03,199 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:03,199 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:03,200 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:03,200 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:03,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-21 11:34:03,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:03,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:34:03,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-21 11:34:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:03,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:03,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:03,208 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:03,209 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:03,209 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:03,210 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:03,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:34:03,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:03,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:03,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:03,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:03,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:03,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:03,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:03,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:34:03,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:03,216 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:03,217 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:03,217 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:03,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:03,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:34:03,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:03,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:03,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:03,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:03,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:03,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:03,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:03,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-21 11:34:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:03,226 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:03,226 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:03,227 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:03,227 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:03,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:03,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:03,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:03,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:03,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:03,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:34:03,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:03,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:03,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-21 11:34:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:03,234 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:03,234 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:03,235 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:03,235 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:03,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:34:03,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:03,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:03,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:03,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:03,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:34:03,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:03,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:03,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-21 11:34:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:03,242 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:03,243 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:03,243 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:03,243 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:03,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 11:34:03,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:03,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:03,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:03,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:03,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:34:03,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:03,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:03,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:03,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:03,250 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:03,250 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:03,250 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:03,251 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:03,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:34:03,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:03,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:03,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:03,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:03,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:03,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:03,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:03,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-21 11:34:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:03,258 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:03,258 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:03,259 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:03,259 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:03,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:34:03,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:03,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:03,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:03,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:03,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:34:03,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:03,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:03,307 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-09-21 11:34:03,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1391621056] [2020-09-21 11:34:03,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:34:03,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-21 11:34:03,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54071756] [2020-09-21 11:34:03,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:34:03,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:34:03,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:34:03,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:34:03,311 INFO L87 Difference]: Start difference. First operand 5640 states and 7470 transitions. Second operand 11 states. [2020-09-21 11:34:06,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:34:06,296 INFO L93 Difference]: Finished difference Result 9567 states and 12933 transitions. [2020-09-21 11:34:06,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 11:34:06,297 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 179 [2020-09-21 11:34:06,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:34:06,316 INFO L225 Difference]: With dead ends: 9567 [2020-09-21 11:34:06,316 INFO L226 Difference]: Without dead ends: 4037 [2020-09-21 11:34:06,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2020-09-21 11:34:06,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4037 states. [2020-09-21 11:34:06,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4037 to 3499. [2020-09-21 11:34:06,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3499 states. [2020-09-21 11:34:06,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3499 states to 3499 states and 4647 transitions. [2020-09-21 11:34:06,594 INFO L78 Accepts]: Start accepts. Automaton has 3499 states and 4647 transitions. Word has length 179 [2020-09-21 11:34:06,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:34:06,595 INFO L479 AbstractCegarLoop]: Abstraction has 3499 states and 4647 transitions. [2020-09-21 11:34:06,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:34:06,595 INFO L276 IsEmpty]: Start isEmpty. Operand 3499 states and 4647 transitions. [2020-09-21 11:34:06,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-09-21 11:34:06,608 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:34:06,608 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:34:06,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:34:06,609 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:34:06,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:34:06,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1216779304, now seen corresponding path program 1 times [2020-09-21 11:34:06,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:34:06,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951784146] [2020-09-21 11:34:06,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:34:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,663 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,664 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,664 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,664 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-21 11:34:06,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:34:06,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:34:06,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:34:06,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-21 11:34:06,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:06,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:34:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,760 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,760 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,760 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,761 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:06,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:06,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:06,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:06,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:06,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:34:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,795 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,796 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,796 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,796 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:06,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:06,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:34:06,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:06,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:34:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,821 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,821 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,821 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,822 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:06,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:06,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:06,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:34:06,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:06,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:34:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,840 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,841 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,841 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,841 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:06,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:06,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:06,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:34:06,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:06,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 11:34:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,861 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,861 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,862 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,862 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:06,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:06,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:06,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:34:06,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:06,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:34:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,869 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,870 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,870 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,870 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:34:06,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:06,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:06,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:34:06,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:06,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,876 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,877 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,877 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,877 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:34:06,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:34:06,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:06,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:06,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:06,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:34:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,882 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,882 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,882 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:34:06,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:06,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:06,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:06,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:06,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:34:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,888 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,889 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,889 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,889 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:06,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:06,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:06,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:34:06,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:06,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 11:34:06,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,951 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,951 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,952 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,952 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 11:34:06,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:34:06,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:06,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-21 11:34:06,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:06,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:34:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,969 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,970 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,970 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,970 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:34:06,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:06,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:06,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:06,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:07,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:34:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:07,008 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:07,008 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:07,009 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:07,015 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:07,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:34:07,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:07,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:34:07,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:07,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:07,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:07,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:07,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:07,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:34:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:07,052 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:07,052 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:07,052 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:07,053 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:07,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:34:07,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:07,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:07,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:07,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:07,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:07,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:07,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:07,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:34:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:07,060 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:07,061 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:07,061 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:07,061 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:07,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:34:07,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:07,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:07,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:07,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:07,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:07,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:07,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:07,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-09-21 11:34:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:07,074 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:07,074 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:07,075 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:07,075 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:07,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:07,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:07,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:34:07,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:07,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:07,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:07,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:34:07,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:07,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-21 11:34:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:07,085 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:07,085 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:07,085 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:07,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:07,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:07,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:07,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:34:07,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:07,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:07,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:07,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:34:07,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:07,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-09-21 11:34:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:07,096 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:07,096 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:07,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:07,097 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:07,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:34:07,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:07,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:07,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:07,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:07,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-21 11:34:07,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-21 11:34:07,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:07,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:07,130 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:07,131 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:07,131 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:07,131 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:07,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:34:07,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:07,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:07,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:07,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:07,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:07,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:34:07,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:07,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:34:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:07,143 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:07,143 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:07,144 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:07,144 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:07,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:34:07,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:07,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:07,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:07,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:07,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:07,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:34:07,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:07,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-21 11:34:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:07,154 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:07,154 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:07,155 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:07,155 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:07,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:07,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:07,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:07,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:07,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:07,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:34:07,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:07,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:07,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-21 11:34:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:07,161 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:07,162 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:07,162 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:07,162 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:07,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:34:07,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:07,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:07,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:07,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:07,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:34:07,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:07,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:07,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-21 11:34:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:07,169 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:07,169 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:07,170 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:07,170 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:07,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 11:34:07,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:07,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:07,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:07,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:07,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:34:07,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:07,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:07,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:07,180 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:07,181 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:07,181 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:07,181 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:07,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:34:07,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:07,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:07,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:07,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:07,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:07,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:07,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:07,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-21 11:34:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:07,187 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:07,188 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:07,188 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:07,188 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:07,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:34:07,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:07,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:07,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:07,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:07,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:34:07,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:07,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:07,237 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-09-21 11:34:07,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951784146] [2020-09-21 11:34:07,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:34:07,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 11:34:07,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139875866] [2020-09-21 11:34:07,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:34:07,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:34:07,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:34:07,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:34:07,240 INFO L87 Difference]: Start difference. First operand 3499 states and 4647 transitions. Second operand 12 states. [2020-09-21 11:34:11,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:34:11,927 INFO L93 Difference]: Finished difference Result 10173 states and 14146 transitions. [2020-09-21 11:34:11,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-21 11:34:11,928 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 184 [2020-09-21 11:34:11,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:34:11,955 INFO L225 Difference]: With dead ends: 10173 [2020-09-21 11:34:11,955 INFO L226 Difference]: Without dead ends: 7036 [2020-09-21 11:34:11,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=290, Invalid=1192, Unknown=0, NotChecked=0, Total=1482 [2020-09-21 11:34:11,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7036 states. [2020-09-21 11:34:12,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7036 to 6120. [2020-09-21 11:34:12,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6120 states. [2020-09-21 11:34:12,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6120 states to 6120 states and 8236 transitions. [2020-09-21 11:34:12,387 INFO L78 Accepts]: Start accepts. Automaton has 6120 states and 8236 transitions. Word has length 184 [2020-09-21 11:34:12,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:34:12,388 INFO L479 AbstractCegarLoop]: Abstraction has 6120 states and 8236 transitions. [2020-09-21 11:34:12,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:34:12,388 INFO L276 IsEmpty]: Start isEmpty. Operand 6120 states and 8236 transitions. [2020-09-21 11:34:12,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-21 11:34:12,403 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:34:12,404 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:34:12,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:34:12,404 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:34:12,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:34:12,405 INFO L82 PathProgramCache]: Analyzing trace with hash -243157208, now seen corresponding path program 1 times [2020-09-21 11:34:12,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:34:12,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90216117] [2020-09-21 11:34:12,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:34:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:12,448 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:12,449 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:12,449 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:12,449 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:12,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-21 11:34:12,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:12,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:12,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:12,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:12,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-09-21 11:34:12,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:34:12,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:12,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:34:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:12,528 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:12,528 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:12,528 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:12,528 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:12,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:12,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:12,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:34:12,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:12,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:12,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:12,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:12,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:12,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:34:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:12,557 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:12,557 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:12,557 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:12,558 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:12,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:12,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:12,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:34:12,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:12,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:12,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:12,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:12,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:12,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:34:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:12,577 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:12,577 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:12,579 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:12,579 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:12,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:12,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:12,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:12,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:12,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:12,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:12,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:12,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:12,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:34:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:12,594 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:12,594 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:12,594 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:12,594 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:12,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:12,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:12,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:34:12,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:12,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:12,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:12,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:12,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:12,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 11:34:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:12,610 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:12,610 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:12,610 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:12,610 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:12,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:12,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:12,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:12,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:12,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:12,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:12,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:12,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:12,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:34:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:12,615 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:12,616 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:12,616 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:12,616 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:12,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:34:12,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:12,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:12,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:12,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:12,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:12,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:12,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:12,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:12,622 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:12,622 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:12,622 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:12,622 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:12,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:34:12,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:12,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:34:12,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:12,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:12,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:12,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:12,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:12,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:34:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:12,627 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:12,627 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:12,627 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:12,627 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:12,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:34:12,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:12,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:34:12,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:12,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:12,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:12,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:12,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:12,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:34:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:12,632 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:12,633 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:12,633 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:12,633 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:12,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:12,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:12,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:34:12,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:12,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:12,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:12,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:12,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0