/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/rekh_ctm.4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 20:44:51,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 20:44:51,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 20:44:51,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 20:44:51,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 20:44:51,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 20:44:51,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 20:44:51,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 20:44:51,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 20:44:51,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 20:44:51,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 20:44:51,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 20:44:51,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 20:44:51,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 20:44:51,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 20:44:51,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 20:44:51,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 20:44:51,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 20:44:51,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 20:44:51,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 20:44:51,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 20:44:51,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 20:44:51,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 20:44:51,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 20:44:51,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 20:44:51,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 20:44:51,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 20:44:51,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 20:44:51,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 20:44:51,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 20:44:51,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 20:44:51,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 20:44:51,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 20:44:51,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 20:44:51,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 20:44:51,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 20:44:51,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 20:44:51,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 20:44:51,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 20:44:51,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 20:44:51,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 20:44:51,450 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 20:44:51,492 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 20:44:51,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 20:44:51,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 20:44:51,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 20:44:51,495 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 20:44:51,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 20:44:51,495 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 20:44:51,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 20:44:51,496 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 20:44:51,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 20:44:51,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 20:44:51,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 20:44:51,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 20:44:51,498 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 20:44:51,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 20:44:51,498 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 20:44:51,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 20:44:51,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 20:44:51,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 20:44:51,499 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 20:44:51,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 20:44:51,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 20:44:51,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 20:44:51,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 20:44:51,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 20:44:51,500 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 20:44:51,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 20:44:51,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 20:44:51,501 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 20:44:51,501 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 20:44:51,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 20:44:51,798 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 20:44:51,801 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 20:44:51,803 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 20:44:51,803 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 20:44:51,804 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_ctm.4.c [2020-10-12 20:44:51,865 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/15007c4cc/bea2b0989ca845c5b5d768901e5d6886/FLAG47515c494 [2020-10-12 20:44:52,485 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 20:44:52,486 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/rekh_ctm.4.c [2020-10-12 20:44:52,507 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/15007c4cc/bea2b0989ca845c5b5d768901e5d6886/FLAG47515c494 [2020-10-12 20:44:52,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/15007c4cc/bea2b0989ca845c5b5d768901e5d6886 [2020-10-12 20:44:52,711 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 20:44:52,712 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 20:44:52,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 20:44:52,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 20:44:52,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 20:44:52,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:44:52" (1/1) ... [2020-10-12 20:44:52,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1780830c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:44:52, skipping insertion in model container [2020-10-12 20:44:52,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:44:52" (1/1) ... [2020-10-12 20:44:52,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 20:44:52,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 20:44:53,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 20:44:53,995 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 20:44:54,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 20:44:54,575 INFO L208 MainTranslator]: Completed translation [2020-10-12 20:44:54,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:44:54 WrapperNode [2020-10-12 20:44:54,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 20:44:54,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 20:44:54,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 20:44:54,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 20:44:54,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:44:54" (1/1) ... [2020-10-12 20:44:54,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:44:54" (1/1) ... [2020-10-12 20:44:54,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:44:54" (1/1) ... [2020-10-12 20:44:54,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:44:54" (1/1) ... [2020-10-12 20:44:54,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:44:54" (1/1) ... [2020-10-12 20:44:54,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:44:54" (1/1) ... [2020-10-12 20:44:54,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:44:54" (1/1) ... [2020-10-12 20:44:54,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 20:44:54,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 20:44:54,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 20:44:54,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 20:44:54,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:44:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 20:44:55,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 20:44:55,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 20:44:55,011 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 20:44:55,011 INFO L138 BoogieDeclarations]: Found implementation of procedure calibrate [2020-10-12 20:44:55,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2020-10-12 20:44:55,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2020-10-12 20:44:55,012 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2020-10-12 20:44:55,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_is_ENTER_button_pressed [2020-10-12 20:44:55,013 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2020-10-12 20:44:55,013 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2020-10-12 20:44:55,014 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2020-10-12 20:44:55,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_light [2020-10-12 20:44:55,014 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2020-10-12 20:44:55,014 INFO L138 BoogieDeclarations]: Found implementation of procedure transition [2020-10-12 20:44:55,014 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 20:44:55,015 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2020-10-12 20:44:55,015 INFO L138 BoogieDeclarations]: Found implementation of procedure Controller [2020-10-12 20:44:55,016 INFO L138 BoogieDeclarations]: Found implementation of procedure Reader [2020-10-12 20:44:55,016 INFO L138 BoogieDeclarations]: Found implementation of procedure Writer [2020-10-12 20:44:55,017 INFO L138 BoogieDeclarations]: Found implementation of procedure TapeMover [2020-10-12 20:44:55,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2020-10-12 20:44:55,017 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperController [2020-10-12 20:44:55,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2020-10-12 20:44:55,018 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperTapeMover [2020-10-12 20:44:55,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2020-10-12 20:44:55,018 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperReader [2020-10-12 20:44:55,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2020-10-12 20:44:55,018 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperWriter [2020-10-12 20:44:55,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2020-10-12 20:44:55,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2020-10-12 20:44:55,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2020-10-12 20:44:55,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2020-10-12 20:44:55,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2020-10-12 20:44:55,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2020-10-12 20:44:55,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2020-10-12 20:44:55,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2020-10-12 20:44:55,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2020-10-12 20:44:55,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2020-10-12 20:44:55,019 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 20:44:55,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2020-10-12 20:44:55,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2020-10-12 20:44:55,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2020-10-12 20:44:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2020-10-12 20:44:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2020-10-12 20:44:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2020-10-12 20:44:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2020-10-12 20:44:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2020-10-12 20:44:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2020-10-12 20:44:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2020-10-12 20:44:55,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2020-10-12 20:44:55,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_dir [2020-10-12 20:44:55,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_read [2020-10-12 20:44:55,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2020-10-12 20:44:55,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2020-10-12 20:44:55,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2020-10-12 20:44:55,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2020-10-12 20:44:55,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2020-10-12 20:44:55,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_Controller [2020-10-12 20:44:55,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_TapeMover [2020-10-12 20:44:55,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_Reader [2020-10-12 20:44:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_Writer [2020-10-12 20:44:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2020-10-12 20:44:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2020-10-12 20:44:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_speed [2020-10-12 20:44:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2020-10-12 20:44:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_speed [2020-10-12 20:44:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2020-10-12 20:44:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_speed [2020-10-12 20:44:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtcolorsensor_data_mode [2020-10-12 20:44:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtcolorsensor_mode [2020-10-12 20:44:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2020-10-12 20:44:55,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2020-10-12 20:44:55,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2020-10-12 20:44:55,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2020-10-12 20:44:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2020-10-12 20:44:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_threshold [2020-10-12 20:44:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2020-10-12 20:44:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2020-10-12 20:44:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2020-10-12 20:44:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_Controller [2020-10-12 20:44:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_TapeMover [2020-10-12 20:44:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_Reader [2020-10-12 20:44:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_Writer [2020-10-12 20:44:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2020-10-12 20:44:55,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 20:44:55,032 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2020-10-12 20:44:55,032 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2020-10-12 20:44:55,032 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2020-10-12 20:44:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2020-10-12 20:44:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2020-10-12 20:44:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2020-10-12 20:44:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-10-12 20:44:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 20:44:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 20:44:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 20:44:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 20:44:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2020-10-12 20:44:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2020-10-12 20:44:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 20:44:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 20:44:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2020-10-12 20:44:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2020-10-12 20:44:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2020-10-12 20:44:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2020-10-12 20:44:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2020-10-12 20:44:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_speed [2020-10-12 20:44:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2020-10-12 20:44:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2020-10-12 20:44:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2020-10-12 20:44:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_speed [2020-10-12 20:44:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2020-10-12 20:44:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2020-10-12 20:44:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2020-10-12 20:44:55,037 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_speed [2020-10-12 20:44:55,037 INFO L130 BoogieDeclarations]: Found specification of procedure calibrate [2020-10-12 20:44:55,037 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2020-10-12 20:44:55,037 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtcolorsensor_data_mode [2020-10-12 20:44:55,038 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2020-10-12 20:44:55,038 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtcolorsensor_mode [2020-10-12 20:44:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2020-10-12 20:44:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2020-10-12 20:44:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2020-10-12 20:44:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_is_ENTER_button_pressed [2020-10-12 20:44:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2020-10-12 20:44:55,041 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2020-10-12 20:44:55,041 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2020-10-12 20:44:55,042 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_light [2020-10-12 20:44:55,045 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2020-10-12 20:44:55,045 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2020-10-12 20:44:55,045 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2020-10-12 20:44:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2020-10-12 20:44:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2020-10-12 20:44:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_dir [2020-10-12 20:44:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2020-10-12 20:44:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_read [2020-10-12 20:44:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2020-10-12 20:44:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2020-10-12 20:44:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2020-10-12 20:44:55,048 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2020-10-12 20:44:55,048 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_threshold [2020-10-12 20:44:55,048 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2020-10-12 20:44:55,048 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2020-10-12 20:44:55,048 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2020-10-12 20:44:55,056 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2020-10-12 20:44:55,056 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2020-10-12 20:44:55,056 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2020-10-12 20:44:55,056 INFO L130 BoogieDeclarations]: Found specification of procedure transition [2020-10-12 20:44:55,056 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 20:44:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2020-10-12 20:44:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure Controller [2020-10-12 20:44:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure Reader [2020-10-12 20:44:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure Writer [2020-10-12 20:44:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure TapeMover [2020-10-12 20:44:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_Controller [2020-10-12 20:44:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_Controller [2020-10-12 20:44:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2020-10-12 20:44:55,058 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperController [2020-10-12 20:44:55,058 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_TapeMover [2020-10-12 20:44:55,058 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_TapeMover [2020-10-12 20:44:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2020-10-12 20:44:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperTapeMover [2020-10-12 20:44:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_Reader [2020-10-12 20:44:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_Reader [2020-10-12 20:44:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2020-10-12 20:44:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperReader [2020-10-12 20:44:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_Writer [2020-10-12 20:44:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_Writer [2020-10-12 20:44:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2020-10-12 20:44:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperWriter [2020-10-12 20:44:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2020-10-12 20:44:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 20:44:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 20:44:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2020-10-12 20:44:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2020-10-12 20:44:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2020-10-12 20:44:55,061 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2020-10-12 20:44:55,062 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 20:44:55,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 20:44:55,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 20:44:55,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 20:44:55,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 20:44:55,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 20:45:20,939 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 20:45:20,940 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-12 20:45:20,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:45:20 BoogieIcfgContainer [2020-10-12 20:45:20,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 20:45:20,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 20:45:20,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 20:45:20,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 20:45:20,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 08:44:52" (1/3) ... [2020-10-12 20:45:20,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4c3df9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:45:20, skipping insertion in model container [2020-10-12 20:45:20,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:44:54" (2/3) ... [2020-10-12 20:45:20,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4c3df9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:45:20, skipping insertion in model container [2020-10-12 20:45:20,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:45:20" (3/3) ... [2020-10-12 20:45:20,968 INFO L109 eAbstractionObserver]: Analyzing ICFG rekh_ctm.4.c [2020-10-12 20:45:20,979 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 20:45:20,990 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 20:45:21,011 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 20:45:21,048 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 20:45:21,048 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 20:45:21,048 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 20:45:21,049 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 20:45:21,049 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 20:45:21,049 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 20:45:21,049 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 20:45:21,049 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 20:45:21,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2593 states. [2020-10-12 20:45:21,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-12 20:45:21,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:45:21,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:45:21,137 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:45:21,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:45:21,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1969854118, now seen corresponding path program 1 times [2020-10-12 20:45:21,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:45:21,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1586612767] [2020-10-12 20:45:21,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:45:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:45:21,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:22,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:22,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:22,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:22,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:22,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:22,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:23,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:23,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:23,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:23,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:23,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:23,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:31,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:45:31,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-12 20:45:31,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 20:45:31,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9771 [2020-10-12 20:45:31,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:45:31,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:45:31,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-12 20:45:31,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:45:31,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 20:45:33,519 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification that was a NOOP. DAG size: 481 [2020-10-12 20:45:33,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:45:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:45:33,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:33,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:45:33,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:45:33,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:45:33,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-12 20:45:33,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:45:33,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:45:33,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:45:33,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:45:33,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:45:33,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 20:45:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:45:33,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:33,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:45:33,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:45:33,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:45:33,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 20:45:33,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:45:33,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:45:33,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:45:33,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:45:33,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:45:33,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 20:45:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:45:33,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:33,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:45:33,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 20:45:33,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:45:33,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 20:45:33,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:45:33,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:45:33,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:45:33,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:45:33,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:45:33,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-12 20:45:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:45:33,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:33,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:33,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:33,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:33,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:33,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:33,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:33,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:33,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:33,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:33,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:33,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:33,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:33,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:33,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:33,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:34,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:34,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:34,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:34,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:34,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:34,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:34,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:34,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:34,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:34,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:34,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:34,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:34,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:34,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:34,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:34,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:34,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:35,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:35,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:35,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:35,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:35,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:35,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:35,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:35,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:35,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:35,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:35,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:35,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:45:35,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 20:45:35,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 44 [2020-10-12 20:45:35,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2003 [2020-10-12 20:45:35,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:45:35,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:45:35,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 20:45:35,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:45:35,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 20:45:35,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-12 20:45:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:45:35,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:36,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:45:36,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:45:36,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:45:36,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 992 [2020-10-12 20:45:36,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:45:36,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:45:36,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 20:45:36,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:45:36,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:45:36,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 20:45:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:45:36,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:37,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:37,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:45:37,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 20:45:37,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 20:45:37,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 20:45:37,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:45:37,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:45:37,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 20:45:37,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:45:37,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:45:37,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 20:45:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:45:37,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:45:37,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:45:37,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 20:45:37,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:45:37,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 20:45:37,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:45:37,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:45:37,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:45:37,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:45:37,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:45:37,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 20:45:37,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1586612767] [2020-10-12 20:45:37,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:45:37,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 20:45:37,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104021440] [2020-10-12 20:45:37,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 20:45:37,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:45:37,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 20:45:37,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 20:45:37,199 INFO L87 Difference]: Start difference. First operand 2593 states. Second operand 6 states. [2020-10-12 20:45:38,760 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 484 [2020-10-12 20:47:08,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:47:08,210 INFO L93 Difference]: Finished difference Result 5986 states and 9810 transitions. [2020-10-12 20:47:08,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 20:47:08,213 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 163 [2020-10-12 20:47:08,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:47:08,268 INFO L225 Difference]: With dead ends: 5986 [2020-10-12 20:47:08,268 INFO L226 Difference]: Without dead ends: 3403 [2020-10-12 20:47:08,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-12 20:47:08,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3403 states. [2020-10-12 20:47:08,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3403 to 2565. [2020-10-12 20:47:08,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2565 states. [2020-10-12 20:47:08,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2565 states to 2565 states and 3150 transitions. [2020-10-12 20:47:08,880 INFO L78 Accepts]: Start accepts. Automaton has 2565 states and 3150 transitions. Word has length 163 [2020-10-12 20:47:08,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:47:08,881 INFO L479 AbstractCegarLoop]: Abstraction has 2565 states and 3150 transitions. [2020-10-12 20:47:08,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 20:47:08,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2565 states and 3150 transitions. [2020-10-12 20:47:08,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-12 20:47:08,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:47:08,896 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:47:08,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 20:47:08,897 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:47:08,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:47:08,897 INFO L82 PathProgramCache]: Analyzing trace with hash 724513710, now seen corresponding path program 1 times [2020-10-12 20:47:08,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:47:08,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [633261932] [2020-10-12 20:47:08,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:47:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:47:09,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:47:09,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:47:37,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:02,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:48:02,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 20:48:02,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:48:02,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53146 [2020-10-12 20:48:02,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:48:02,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 20:48:02,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-12 20:48:02,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 20:48:02,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:48:04,602 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification that was a NOOP. DAG size: 481 [2020-10-12 20:48:04,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:48:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:48:04,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:04,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:48:04,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:48:04,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:48:04,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-12 20:48:04,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:48:04,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:48:04,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:48:04,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:48:04,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:48:04,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 20:48:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:48:04,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:04,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:48:04,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:48:04,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:48:04,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 20:48:04,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:48:04,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:48:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:48:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:48:04,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:48:04,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 20:48:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:48:04,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:04,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:48:04,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 20:48:04,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:48:04,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 20:48:04,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:48:04,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:48:04,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:48:04,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:48:04,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 20:48:04,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-12 20:48:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:48:06,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:08,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:09,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:11,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:48:11,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 20:48:11,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:48:11,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5291 [2020-10-12 20:48:11,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:48:11,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 20:48:11,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 20:48:11,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 20:48:11,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:48:13,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-12 20:48:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:48:13,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:14,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:48:14,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:48:14,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:48:14,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 689 [2020-10-12 20:48:14,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:48:14,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:48:14,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 20:48:14,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:48:14,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:48:14,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 20:48:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:48:14,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:14,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:14,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:14,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:14,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:14,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:14,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:19,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:48:19,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 20:48:19,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 20:48:19,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 20:48:19,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:48:19,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:48:19,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-12 20:48:19,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 20:48:19,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:48:19,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 20:48:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:48:19,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:19,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:48:19,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 20:48:19,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:48:19,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 20:48:19,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:48:19,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:48:19,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:48:19,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:48:19,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:48:20,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 20:48:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:48:20,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:20,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:48:20,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 20:48:20,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:48:20,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 20:48:20,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:48:20,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:48:20,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:48:20,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:48:20,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:48:20,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 20:48:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:48:20,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:20,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:20,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:48:20,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 20:48:20,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 20:48:20,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 20:48:20,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:48:20,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 20:48:20,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:48:20,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 20:48:20,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:48:20,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 20:48:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:48:20,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:20,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:48:20,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 20:48:20,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:48:20,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 20:48:20,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:48:20,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 20:48:20,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:48:20,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 20:48:20,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 20:48:20,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 20:48:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:48:20,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:20,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:20,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:48:20,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 20:48:20,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 20:48:20,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 20:48:20,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:48:20,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 20:48:20,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:48:20,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 20:48:20,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:48:21,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 20:48:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:48:21,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:21,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:48:21,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 20:48:21,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:48:21,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 20:48:21,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:48:21,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 20:48:21,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:48:21,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 20:48:21,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:48:21,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 20:48:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:48:21,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:21,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:21,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:48:21,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 20:48:21,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 20:48:21,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 20:48:21,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:48:21,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 20:48:21,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:48:21,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 20:48:21,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:48:21,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 20:48:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:48:21,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:21,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:21,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:48:21,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 20:48:21,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 20:48:21,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 20:48:21,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:48:21,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 20:48:21,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:48:21,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 20:48:21,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:48:22,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-12 20:48:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:48:22,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:22,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:48:22,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 20:48:22,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:48:22,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 20:48:22,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:48:22,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 20:48:22,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 20:48:22,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 20:48:22,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:48:22,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 20:48:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:48:22,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:48:22,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:48:22,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 20:48:22,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:48:22,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 20:48:22,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:48:22,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 20:48:22,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:48:22,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 20:48:22,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:48:22,755 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 20:48:22,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [633261932] [2020-10-12 20:48:22,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:48:22,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2020-10-12 20:48:22,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370356577] [2020-10-12 20:48:22,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-12 20:48:22,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:48:22,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-12 20:48:22,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=640, Unknown=0, NotChecked=0, Total=702 [2020-10-12 20:48:22,759 INFO L87 Difference]: Start difference. First operand 2565 states and 3150 transitions. Second operand 27 states. [2020-10-12 20:48:24,361 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 484