/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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 17:37:39,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 17:37:39,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 17:37:39,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 17:37:39,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 17:37:39,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 17:37:39,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 17:37:39,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 17:37:39,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 17:37:39,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 17:37:39,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 17:37:39,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 17:37:39,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 17:37:39,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 17:37:39,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 17:37:39,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 17:37:39,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 17:37:39,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 17:37:39,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 17:37:39,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 17:37:39,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 17:37:39,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 17:37:39,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 17:37:39,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 17:37:39,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 17:37:39,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 17:37:39,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 17:37:39,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 17:37:39,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 17:37:39,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 17:37:39,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 17:37:39,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 17:37:39,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 17:37:39,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 17:37:39,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 17:37:39,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 17:37:39,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 17:37:39,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 17:37:39,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 17:37:39,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 17:37:39,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 17:37:39,426 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-13 17:37:39,469 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 17:37:39,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 17:37:39,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 17:37:39,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 17:37:39,472 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 17:37:39,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 17:37:39,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 17:37:39,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 17:37:39,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 17:37:39,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 17:37:39,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 17:37:39,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 17:37:39,474 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 17:37:39,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 17:37:39,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 17:37:39,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 17:37:39,475 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 17:37:39,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 17:37:39,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 17:37:39,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 17:37:39,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 17:37:39,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 17:37:39,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 17:37:39,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 17:37:39,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 17:37:39,477 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 17:37:39,477 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 17:37:39,477 INFO L138 SettingsManager]: * To the following directory=dump/ 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 17:37:39,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 17:37:39,812 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 17:37:39,815 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 17:37:39,817 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 17:37:39,817 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 17:37:39,818 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2020-10-13 17:37:39,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11ef513ba/f10e93066e1f4d29bdf39cee8d6eb264/FLAGce78e0821 [2020-10-13 17:37:40,656 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 17:37:40,656 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2020-10-13 17:37:40,685 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11ef513ba/f10e93066e1f4d29bdf39cee8d6eb264/FLAGce78e0821 [2020-10-13 17:37:41,158 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11ef513ba/f10e93066e1f4d29bdf39cee8d6eb264 [2020-10-13 17:37:41,166 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 17:37:41,168 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 17:37:41,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 17:37:41,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 17:37:41,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 17:37:41,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:37:41" (1/1) ... [2020-10-13 17:37:41,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e14fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:37:41, skipping insertion in model container [2020-10-13 17:37:41,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:37:41" (1/1) ... [2020-10-13 17:37:41,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 17:37:41,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 17:37:42,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:37:42,864 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 17:37:43,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:37:43,438 INFO L208 MainTranslator]: Completed translation [2020-10-13 17:37:43,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:37:43 WrapperNode [2020-10-13 17:37:43,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 17:37:43,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 17:37:43,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 17:37:43,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 17:37:43,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:37:43" (1/1) ... [2020-10-13 17:37:43,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:37:43" (1/1) ... [2020-10-13 17:37:43,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:37:43" (1/1) ... [2020-10-13 17:37:43,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:37:43" (1/1) ... [2020-10-13 17:37:43,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:37:43" (1/1) ... [2020-10-13 17:37:43,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:37:43" (1/1) ... [2020-10-13 17:37:43,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:37:43" (1/1) ... [2020-10-13 17:37:43,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 17:37:43,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 17:37:43,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 17:37:43,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 17:37:43,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:37:43" (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 [2020-10-13 17:37:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 17:37:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 17:37:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-10-13 17:37:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-10-13 17:37:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-13 17:37:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2020-10-13 17:37:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2020-10-13 17:37:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-13 17:37:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-13 17:37:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2020-10-13 17:37:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ia32_task [2020-10-13 17:37:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2020-10-13 17:37:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-13 17:37:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-13 17:37:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2020-10-13 17:37:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-13 17:37:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2020-10-13 17:37:43,831 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2020-10-13 17:37:43,831 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-13 17:37:43,831 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-13 17:37:43,831 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2020-10-13 17:37:43,832 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2020-10-13 17:37:43,832 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2020-10-13 17:37:43,832 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 17:37:43,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-13 17:37:43,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 17:37:43,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 17:37:43,833 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 17:37:43,833 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-13 17:37:43,833 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-10-13 17:37:43,833 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-10-13 17:37:43,834 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-10-13 17:37:43,834 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_events_per_packet [2020-10-13 17:37:43,834 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_min [2020-10-13 17:37:43,834 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_set_min [2020-10-13 17:37:43,835 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_max [2020-10-13 17:37:43,835 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_set_max [2020-10-13 17:37:43,835 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_set_fuzz [2020-10-13 17:37:43,835 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_flat [2020-10-13 17:37:43,836 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_set_flat [2020-10-13 17:37:43,836 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2020-10-13 17:37:43,836 INFO L138 BoogieDeclarations]: Found implementation of procedure is_x32_task [2020-10-13 17:37:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure is_compat_task [2020-10-13 17:37:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event_size [2020-10-13 17:37:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_event [2020-10-13 17:37:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_alloc_id [2020-10-13 17:37:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_find [2020-10-13 17:37:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_reserve_slot [2020-10-13 17:37:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_done [2020-10-13 17:37:43,839 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_send [2020-10-13 17:37:43,839 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_submit [2020-10-13 17:37:43,839 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_flush_requests [2020-10-13 17:37:43,840 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_set_gain [2020-10-13 17:37:43,840 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_set_autocenter [2020-10-13 17:37:43,840 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_playback [2020-10-13 17:37:43,841 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_upload_effect [2020-10-13 17:37:43,841 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_erase_effect [2020-10-13 17:37:43,841 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_destroy_device [2020-10-13 17:37:43,841 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_create_device [2020-10-13 17:37:43,841 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_open [2020-10-13 17:37:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_validate_absbits [2020-10-13 17:37:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_allocate_device [2020-10-13 17:37:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_setup_device [2020-10-13 17:37:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_inject_event [2020-10-13 17:37:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_write [2020-10-13 17:37:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_fetch_next_event [2020-10-13 17:37:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_events_to_user [2020-10-13 17:37:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_read [2020-10-13 17:37:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_poll [2020-10-13 17:37:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_release [2020-10-13 17:37:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ff_upload_to_user [2020-10-13 17:37:43,844 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ff_upload_from_user [2020-10-13 17:37:43,845 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ioctl_handler [2020-10-13 17:37:43,846 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ioctl [2020-10-13 17:37:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_compat_ioctl [2020-10-13 17:37:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_init [2020-10-13 17:37:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_exit [2020-10-13 17:37:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 17:37:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-13 17:37:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-13 17:37:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-13 17:37:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-10-13 17:37:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-10-13 17:37:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_6 [2020-10-13 17:37:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-13 17:37:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_8 [2020-10-13 17:37:43,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-10-13 17:37:43,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_10 [2020-10-13 17:37:43,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2020-10-13 17:37:43,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2020-10-13 17:37:43,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2020-10-13 17:37:43,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 17:37:43,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 17:37:43,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-13 17:37:43,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-13 17:37:43,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-13 17:37:43,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-13 17:37:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-13 17:37:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-13 17:37:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-13 17:37:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-13 17:37:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-13 17:37:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-13 17:37:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-13 17:37:43,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-13 17:37:43,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-13 17:37:43,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-13 17:37:43,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2020-10-13 17:37:43,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_uinput_device [2020-10-13 17:37:43,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_uinput_device [2020-10-13 17:37:43,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_uinput_device [2020-10-13 17:37:43,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_uinput_device [2020-10-13 17:37:43,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_uinput_device [2020-10-13 17:37:43,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_uinput_device [2020-10-13 17:37:43,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 17:37:43,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 17:37:43,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-13 17:37:43,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-10-13 17:37:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-13 17:37:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2020-10-13 17:37:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2020-10-13 17:37:43,858 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-13 17:37:43,858 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-13 17:37:43,858 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2020-10-13 17:37:43,858 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-13 17:37:43,860 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2020-10-13 17:37:43,860 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2020-10-13 17:37:43,861 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-13 17:37:43,862 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-13 17:37:43,865 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2020-10-13 17:37:43,865 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2020-10-13 17:37:43,865 INFO L138 BoogieDeclarations]: Found implementation of procedure input_alloc_absinfo [2020-10-13 17:37:43,866 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-10-13 17:37:43,866 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event_from_user [2020-10-13 17:37:43,866 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event_to_user [2020-10-13 17:37:43,866 INFO L138 BoogieDeclarations]: Found implementation of procedure input_ff_create [2020-10-13 17:37:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure input_ff_destroy [2020-10-13 17:37:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-10-13 17:37:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure input_mt_init_slots [2020-10-13 17:37:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-10-13 17:37:43,868 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-10-13 17:37:43,868 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrndup [2020-10-13 17:37:43,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2020-10-13 17:37:43,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2020-10-13 17:37:43,869 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2020-10-13 17:37:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-13 17:37:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2020-10-13 17:37:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2020-10-13 17:37:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-13 17:37:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2020-10-13 17:37:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-13 17:37:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-13 17:37:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure nonseekable_open [2020-10-13 17:37:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2020-10-13 17:37:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 17:37:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2020-10-13 17:37:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure strndup_user [2020-10-13 17:37:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2020-10-13 17:37:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-13 17:37:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 17:37:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 17:37:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-13 17:37:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 17:37:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 17:37:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-10-13 17:37:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-13 17:37:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 17:37:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2020-10-13 17:37:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 17:37:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-13 17:37:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-10-13 17:37:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2020-10-13 17:37:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure strndup_user [2020-10-13 17:37:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2020-10-13 17:37:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-13 17:37:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 17:37:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure kstrndup [2020-10-13 17:37:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-13 17:37:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-13 17:37:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-13 17:37:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-10-13 17:37:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-13 17:37:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-10-13 17:37:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-13 17:37:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-13 17:37:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-10-13 17:37:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-13 17:37:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-10-13 17:37:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2020-10-13 17:37:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2020-10-13 17:37:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2020-10-13 17:37:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_6 [2020-10-13 17:37:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_8 [2020-10-13 17:37:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_10 [2020-10-13 17:37:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2020-10-13 17:37:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-13 17:37:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-13 17:37:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-13 17:37:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-13 17:37:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-13 17:37:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-13 17:37:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-13 17:37:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-13 17:37:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2020-10-13 17:37:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_uinput_device [2020-10-13 17:37:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2020-10-13 17:37:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure is_ia32_task [2020-10-13 17:37:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2020-10-13 17:37:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-13 17:37:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-13 17:37:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2020-10-13 17:37:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-13 17:37:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2020-10-13 17:37:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-13 17:37:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-13 17:37:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2020-10-13 17:37:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-13 17:37:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2020-10-13 17:37:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2020-10-13 17:37:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-13 17:37:43,886 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2020-10-13 17:37:43,886 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2020-10-13 17:37:43,886 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2020-10-13 17:37:43,886 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2020-10-13 17:37:43,886 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2020-10-13 17:37:43,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 17:37:43,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 17:37:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 17:37:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2020-10-13 17:37:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2020-10-13 17:37:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure no_llseek [2020-10-13 17:37:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure nonseekable_open [2020-10-13 17:37:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-13 17:37:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2020-10-13 17:37:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-13 17:37:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-13 17:37:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2020-10-13 17:37:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-10-13 17:37:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 17:37:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2020-10-13 17:37:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2020-10-13 17:37:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2020-10-13 17:37:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 17:37:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 17:37:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 17:37:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 17:37:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 17:37:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-13 17:37:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 17:37:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 17:37:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 17:37:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 17:37:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 17:37:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-13 17:37:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2020-10-13 17:37:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2020-10-13 17:37:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-13 17:37:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-13 17:37:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-10-13 17:37:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-10-13 17:37:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-10-13 17:37:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-10-13 17:37:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-10-13 17:37:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-10-13 17:37:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-10-13 17:37:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_events_per_packet [2020-10-13 17:37:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure input_alloc_absinfo [2020-10-13 17:37:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_min [2020-10-13 17:37:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_set_min [2020-10-13 17:37:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_max [2020-10-13 17:37:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_set_max [2020-10-13 17:37:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_set_fuzz [2020-10-13 17:37:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_flat [2020-10-13 17:37:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_set_flat [2020-10-13 17:37:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure input_ff_create [2020-10-13 17:37:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure input_ff_destroy [2020-10-13 17:37:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure input_mt_init_slots [2020-10-13 17:37:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2020-10-13 17:37:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure is_x32_task [2020-10-13 17:37:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure is_compat_task [2020-10-13 17:37:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure input_event_size [2020-10-13 17:37:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure input_event_from_user [2020-10-13 17:37:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure input_event_to_user [2020-10-13 17:37:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_event [2020-10-13 17:37:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_alloc_id [2020-10-13 17:37:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 17:37:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_find [2020-10-13 17:37:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_reserve_slot [2020-10-13 17:37:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_done [2020-10-13 17:37:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_send [2020-10-13 17:37:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_submit [2020-10-13 17:37:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_flush_requests [2020-10-13 17:37:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_set_gain [2020-10-13 17:37:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_set_autocenter [2020-10-13 17:37:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_playback [2020-10-13 17:37:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_upload_effect [2020-10-13 17:37:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_erase_effect [2020-10-13 17:37:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_destroy_device [2020-10-13 17:37:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_create_device [2020-10-13 17:37:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_open [2020-10-13 17:37:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_validate_absbits [2020-10-13 17:37:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_allocate_device [2020-10-13 17:37:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_setup_device [2020-10-13 17:37:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_inject_event [2020-10-13 17:37:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_write [2020-10-13 17:37:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_fetch_next_event [2020-10-13 17:37:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_events_to_user [2020-10-13 17:37:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_read [2020-10-13 17:37:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_poll [2020-10-13 17:37:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_release [2020-10-13 17:37:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ff_upload_to_user [2020-10-13 17:37:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-13 17:37:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ff_upload_from_user [2020-10-13 17:37:43,906 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ioctl_handler [2020-10-13 17:37:43,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 17:37:43,906 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ioctl [2020-10-13 17:37:43,906 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_compat_ioctl [2020-10-13 17:37:43,906 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_init [2020-10-13 17:37:43,906 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_exit [2020-10-13 17:37:43,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 17:37:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2020-10-13 17:37:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 17:37:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2020-10-13 17:37:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 17:37:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 17:37:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-13 17:37:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-13 17:37:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-13 17:37:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-13 17:37:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-13 17:37:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-13 17:37:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-13 17:37:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-13 17:37:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-13 17:37:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_uinput_device [2020-10-13 17:37:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_uinput_device [2020-10-13 17:37:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_uinput_device [2020-10-13 17:37:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_uinput_device [2020-10-13 17:37:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_uinput_device [2020-10-13 17:37:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 17:37:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 17:37:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 17:37:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 17:37:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 17:37:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 17:37:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-13 17:37:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-13 17:37:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-13 17:37:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-13 17:37:53,154 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 17:37:53,154 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 17:37:53,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:37:53 BoogieIcfgContainer [2020-10-13 17:37:53,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 17:37:53,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 17:37:53,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 17:37:53,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 17:37:53,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:37:41" (1/3) ... [2020-10-13 17:37:53,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186f942d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:37:53, skipping insertion in model container [2020-10-13 17:37:53,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:37:43" (2/3) ... [2020-10-13 17:37:53,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186f942d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:37:53, skipping insertion in model container [2020-10-13 17:37:53,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:37:53" (3/3) ... [2020-10-13 17:37:53,174 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2020-10-13 17:37:53,185 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 17:37:53,195 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 17:37:53,210 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 17:37:53,242 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 17:37:53,243 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 17:37:53,243 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 17:37:53,243 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 17:37:53,243 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 17:37:53,243 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 17:37:53,243 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 17:37:53,244 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 17:37:53,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states. [2020-10-13 17:37:53,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-13 17:37:53,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:37:53,293 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] [2020-10-13 17:37:53,294 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:37:53,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:37:53,300 INFO L82 PathProgramCache]: Analyzing trace with hash 2118481841, now seen corresponding path program 1 times [2020-10-13 17:37:53,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:37:53,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334152456] [2020-10-13 17:37:53,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:37:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:37:53,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:37:54,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:37:54,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 17:37:54,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:37:54,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 475 [2020-10-13 17:37:54,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:37:54,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:37:54,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 17:37:54,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 17:37:54,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 17:37:54,345 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 17:37:54,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:37:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:37:54,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:37:54,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:37:54,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:37:54,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:37:54,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 17:37:54,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:37:54,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:37:54,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:37:54,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:37:54,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:37:54,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:37:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:37:54,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:37:54,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:37:54,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:37:54,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:37:54,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 17:37:54,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:37:54,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:37:54,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:37:54,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:37:54,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:37:54,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 17:37:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:37:54,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:37:54,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:37:54,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:37:54,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:37:54,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 17:37:54,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:37:54,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:37:54,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:37:54,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:37:54,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:37:54,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 17:37:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:37:54,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:37:54,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:37:54,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:37:54,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:37:54,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 17:37:54,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:37:54,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:37:54,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:37:54,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 17:37:54,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:37:54,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:37:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:37:54,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:37:54,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:37:54,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:37:54,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:37:54,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:37:54,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:37:54,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:37:54,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:37:54,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:37:54,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:37:54,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:37:54,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1334152456] [2020-10-13 17:37:54,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:37:54,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:37:54,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648821624] [2020-10-13 17:37:54,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:37:54,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:37:54,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:37:54,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:37:54,648 INFO L87 Difference]: Start difference. First operand 1134 states. Second operand 5 states. [2020-10-13 17:37:54,905 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 17:38:04,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:38:04,902 INFO L93 Difference]: Finished difference Result 2062 states and 2771 transitions. [2020-10-13 17:38:04,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 17:38:04,907 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-13 17:38:04,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:38:04,946 INFO L225 Difference]: With dead ends: 2062 [2020-10-13 17:38:04,946 INFO L226 Difference]: Without dead ends: 1143 [2020-10-13 17:38:04,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:38:04,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2020-10-13 17:38:05,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 924. [2020-10-13 17:38:05,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 924 states. [2020-10-13 17:38:05,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1184 transitions. [2020-10-13 17:38:05,171 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1184 transitions. Word has length 28 [2020-10-13 17:38:05,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:38:05,172 INFO L479 AbstractCegarLoop]: Abstraction has 924 states and 1184 transitions. [2020-10-13 17:38:05,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:38:05,172 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1184 transitions. [2020-10-13 17:38:05,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-13 17:38:05,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:38:05,174 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] [2020-10-13 17:38:05,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 17:38:05,174 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:38:05,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:38:05,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1247861199, now seen corresponding path program 1 times [2020-10-13 17:38:05,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:38:05,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1487240196] [2020-10-13 17:38:05,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:38:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:05,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:05,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:05,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-13 17:38:05,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:05,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-13 17:38:05,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:05,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:38:05,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 17:38:05,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 17:38:05,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:05,620 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 17:38:05,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:38:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:05,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:05,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:05,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:38:05,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:05,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 17:38:05,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:05,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:38:05,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:38:05,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:38:05,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:05,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:38:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:05,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:05,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:05,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:38:05,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:05,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:38:05,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:05,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:38:05,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:38:05,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:38:05,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:05,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 17:38:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:05,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:05,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:05,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:38:05,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:05,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:38:05,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:05,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:38:05,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:38:05,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:38:05,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:05,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 17:38:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:05,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:05,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:05,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:38:05,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:05,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 17:38:05,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:05,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:38:05,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:38:05,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 17:38:05,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:05,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:38:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:05,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:05,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:05,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:38:05,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:05,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:38:05,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:05,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:38:05,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:38:05,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:38:05,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:05,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:38:05,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1487240196] [2020-10-13 17:38:05,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:38:05,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:38:05,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180979938] [2020-10-13 17:38:05,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:38:05,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:38:05,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:38:05,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:38:05,773 INFO L87 Difference]: Start difference. First operand 924 states and 1184 transitions. Second operand 5 states. [2020-10-13 17:38:06,010 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 17:38:17,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:38:17,520 INFO L93 Difference]: Finished difference Result 1145 states and 1532 transitions. [2020-10-13 17:38:17,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 17:38:17,520 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-10-13 17:38:17,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:38:17,530 INFO L225 Difference]: With dead ends: 1145 [2020-10-13 17:38:17,530 INFO L226 Difference]: Without dead ends: 1142 [2020-10-13 17:38:17,532 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:38:17,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2020-10-13 17:38:17,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 923. [2020-10-13 17:38:17,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2020-10-13 17:38:17,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1182 transitions. [2020-10-13 17:38:17,651 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1182 transitions. Word has length 29 [2020-10-13 17:38:17,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:38:17,652 INFO L479 AbstractCegarLoop]: Abstraction has 923 states and 1182 transitions. [2020-10-13 17:38:17,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:38:17,652 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1182 transitions. [2020-10-13 17:38:17,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-13 17:38:17,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:38:17,653 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] [2020-10-13 17:38:17,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 17:38:17,653 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:38:17,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:38:17,654 INFO L82 PathProgramCache]: Analyzing trace with hash 28429940, now seen corresponding path program 1 times [2020-10-13 17:38:17,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:38:17,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1875224182] [2020-10-13 17:38:17,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:38:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:17,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:17,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:17,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-13 17:38:17,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:17,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-13 17:38:17,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:17,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:38:17,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 17:38:17,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 17:38:17,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:18,090 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 17:38:18,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:38:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:18,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:18,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:18,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:38:18,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:18,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 17:38:18,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:18,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:38:18,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:38:18,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:38:18,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:18,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:38:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:18,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:18,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:18,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:38:18,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:18,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:38:18,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:18,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:38:18,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:38:18,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:38:18,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:18,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 17:38:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:18,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:18,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:18,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:38:18,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:18,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 17:38:18,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:18,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:38:18,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:38:18,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:38:18,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:38:18,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 17:38:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:18,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:18,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:18,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:38:18,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:18,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 17:38:18,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:18,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:38:18,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:38:18,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 17:38:18,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:18,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:38:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:18,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:18,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:18,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:38:18,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:18,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:38:18,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:18,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:38:18,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:38:18,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:38:18,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:18,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:38:18,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1875224182] [2020-10-13 17:38:18,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:38:18,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:38:18,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321814853] [2020-10-13 17:38:18,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:38:18,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:38:18,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:38:18,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:38:18,254 INFO L87 Difference]: Start difference. First operand 923 states and 1182 transitions. Second operand 5 states. [2020-10-13 17:38:18,460 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 17:38:31,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:38:31,974 INFO L93 Difference]: Finished difference Result 2787 states and 3638 transitions. [2020-10-13 17:38:31,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 17:38:31,975 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-10-13 17:38:31,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:38:31,989 INFO L225 Difference]: With dead ends: 2787 [2020-10-13 17:38:31,990 INFO L226 Difference]: Without dead ends: 1873 [2020-10-13 17:38:31,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:38:31,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1873 states. [2020-10-13 17:38:32,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1873 to 1754. [2020-10-13 17:38:32,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1754 states. [2020-10-13 17:38:32,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 2275 transitions. [2020-10-13 17:38:32,214 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 2275 transitions. Word has length 30 [2020-10-13 17:38:32,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:38:32,214 INFO L479 AbstractCegarLoop]: Abstraction has 1754 states and 2275 transitions. [2020-10-13 17:38:32,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:38:32,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 2275 transitions. [2020-10-13 17:38:32,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-13 17:38:32,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:38:32,220 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 17:38:32,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 17:38:32,221 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:38:32,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:38:32,221 INFO L82 PathProgramCache]: Analyzing trace with hash 80673665, now seen corresponding path program 1 times [2020-10-13 17:38:32,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:38:32,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [930805640] [2020-10-13 17:38:32,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:38:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:32,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:32,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:33,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:33,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 17:38:33,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:38:33,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1123 [2020-10-13 17:38:33,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:33,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 17:38:33,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-13 17:38:33,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 17:38:33,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:38:33,546 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 17:38:33,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:38:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:33,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:33,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:33,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:38:33,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:33,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 17:38:33,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:33,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:38:33,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:38:33,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:38:33,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:33,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:38:33,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:33,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:33,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:33,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:38:33,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:33,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:38:33,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:33,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:38:33,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:38:33,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:38:33,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:33,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 17:38:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:33,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:33,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:33,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:38:33,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:33,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:38:33,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:33,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:38:33,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:38:33,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:38:33,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:33,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 17:38:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:33,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:33,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:33,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:38:33,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:33,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:38:33,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:33,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:38:33,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:38:33,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:38:33,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:33,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:38:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:33,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:33,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:33,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:38:33,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:33,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:38:33,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:33,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:38:33,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:38:33,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:38:33,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:33,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 17:38:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:33,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:33,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:33,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:38:33,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:33,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:38:33,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:33,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:38:33,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:38:33,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:38:33,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:33,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 17:38:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:33,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:33,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:33,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 17:38:33,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:33,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 17:38:33,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:33,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:38:33,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:38:33,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 17:38:33,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:33,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:38:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:33,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:33,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:33,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:38:33,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:33,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:38:33,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:33,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:38:33,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:38:33,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:38:33,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:33,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:38:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:33,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:33,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:38:33,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 17:38:33,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:38:33,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 17:38:33,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:38:33,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:38:33,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:38:33,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:38:33,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:38:33,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-13 17:38:33,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [930805640] [2020-10-13 17:38:33,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:38:33,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 17:38:33,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080916880] [2020-10-13 17:38:33,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 17:38:33,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:38:33,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 17:38:33,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-13 17:38:33,789 INFO L87 Difference]: Start difference. First operand 1754 states and 2275 transitions. Second operand 6 states. [2020-10-13 17:38:35,289 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 17:38:59,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:38:59,595 INFO L93 Difference]: Finished difference Result 3603 states and 4690 transitions. [2020-10-13 17:38:59,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 17:38:59,596 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-10-13 17:38:59,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:38:59,608 INFO L225 Difference]: With dead ends: 3603 [2020-10-13 17:38:59,608 INFO L226 Difference]: Without dead ends: 1871 [2020-10-13 17:38:59,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-13 17:38:59,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2020-10-13 17:38:59,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1746. [2020-10-13 17:38:59,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1746 states. [2020-10-13 17:38:59,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1746 states to 1746 states and 2238 transitions. [2020-10-13 17:38:59,785 INFO L78 Accepts]: Start accepts. Automaton has 1746 states and 2238 transitions. Word has length 63 [2020-10-13 17:38:59,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:38:59,788 INFO L479 AbstractCegarLoop]: Abstraction has 1746 states and 2238 transitions. [2020-10-13 17:38:59,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 17:38:59,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1746 states and 2238 transitions. [2020-10-13 17:38:59,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-13 17:38:59,795 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:38:59,795 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 17:38:59,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 17:38:59,796 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:38:59,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:38:59,796 INFO L82 PathProgramCache]: Analyzing trace with hash -429860512, now seen corresponding path program 1 times [2020-10-13 17:38:59,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:38:59,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544403632] [2020-10-13 17:38:59,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:38:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:38:59,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:38:59,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:01,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:01,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 17:39:01,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:39:01,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1398 [2020-10-13 17:39:01,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:01,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 17:39:01,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-13 17:39:01,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 17:39:01,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:39:01,502 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 17:39:01,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:39:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:01,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:01,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:01,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:39:01,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:39:01,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 17:39:01,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:01,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:39:01,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:39:01,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:39:01,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:39:01,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:39:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:01,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:01,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:01,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:39:01,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:39:01,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:39:01,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:01,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:39:01,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:39:01,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:39:01,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:39:01,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 17:39:01,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:01,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:01,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:01,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:39:01,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:39:01,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:39:01,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:01,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:39:01,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:39:01,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:39:01,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:39:01,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 17:39:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:01,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:01,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:01,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:39:01,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:39:01,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 17:39:01,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:01,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:39:01,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:39:01,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:39:01,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:39:01,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:39:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:01,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:01,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:01,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:39:01,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:39:01,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:39:01,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:01,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:39:01,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:39:01,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:39:01,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:39:01,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 17:39:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:01,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:01,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:01,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:39:01,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:39:01,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:39:01,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:01,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:39:01,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:39:01,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:39:01,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:39:01,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 17:39:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:01,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:01,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:01,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 17:39:01,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:39:01,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 17:39:01,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:01,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 17:39:01,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:39:01,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 17:39:01,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:39:01,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:39:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:01,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:01,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:01,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:39:01,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:39:01,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:39:01,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:01,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:39:01,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:39:01,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:39:01,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:39:01,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:39:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:01,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:01,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:01,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 17:39:01,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:39:01,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 17:39:01,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:01,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 17:39:01,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:39:01,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 17:39:01,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:39:01,935 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-13 17:39:01,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544403632] [2020-10-13 17:39:01,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:39:01,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 17:39:01,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858202765] [2020-10-13 17:39:01,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 17:39:01,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:39:01,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 17:39:01,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-13 17:39:01,938 INFO L87 Difference]: Start difference. First operand 1746 states and 2238 transitions. Second operand 10 states. [2020-10-13 17:39:03,411 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 17:39:03,691 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 17:39:03,871 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 17:39:42,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:39:42,380 INFO L93 Difference]: Finished difference Result 1924 states and 2473 transitions. [2020-10-13 17:39:42,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 17:39:42,381 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-10-13 17:39:42,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:39:42,391 INFO L225 Difference]: With dead ends: 1924 [2020-10-13 17:39:42,391 INFO L226 Difference]: Without dead ends: 1818 [2020-10-13 17:39:42,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2020-10-13 17:39:42,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2020-10-13 17:39:42,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1697. [2020-10-13 17:39:42,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1697 states. [2020-10-13 17:39:42,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2179 transitions. [2020-10-13 17:39:42,554 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2179 transitions. Word has length 63 [2020-10-13 17:39:42,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:39:42,554 INFO L479 AbstractCegarLoop]: Abstraction has 1697 states and 2179 transitions. [2020-10-13 17:39:42,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 17:39:42,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2179 transitions. [2020-10-13 17:39:42,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-13 17:39:42,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:39:42,560 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 17:39:42,561 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 17:39:42,561 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:39:42,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:39:42,561 INFO L82 PathProgramCache]: Analyzing trace with hash 788709455, now seen corresponding path program 1 times [2020-10-13 17:39:42,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:39:42,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403867986] [2020-10-13 17:39:42,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:39:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:42,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:42,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:44,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:44,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-13 17:39:44,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:39:44,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1491 [2020-10-13 17:39:44,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:44,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 17:39:44,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-13 17:39:44,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 17:39:44,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:39:44,328 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 17:39:44,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:39:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:44,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:44,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:44,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:39:44,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:39:44,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 17:39:44,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:44,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:39:44,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:39:44,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:39:44,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:39:44,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:39:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:44,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:44,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:44,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:39:44,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:39:44,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:39:44,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:44,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:39:44,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:39:44,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:39:44,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:39:44,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 17:39:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:44,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:44,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:44,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:39:44,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:39:44,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:39:44,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:44,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:39:44,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:39:44,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:39:44,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:39:44,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 17:39:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:44,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:44,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:44,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:39:44,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:39:44,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:39:44,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:44,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:39:44,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:39:44,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:39:44,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:39:44,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:39:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:44,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:44,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:44,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:39:44,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:39:44,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:39:44,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:44,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:39:44,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:39:44,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:39:44,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:39:44,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 17:39:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:44,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:44,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:44,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:39:44,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:39:44,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:39:44,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:44,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:39:44,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:39:44,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:39:44,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:39:44,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 17:39:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:44,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:44,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:44,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 17:39:44,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:39:44,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 17:39:44,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:44,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 17:39:44,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:39:44,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 17:39:44,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:39:44,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:39:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:44,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:44,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:44,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:39:44,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:39:44,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:39:44,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:44,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:39:44,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:39:44,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:39:44,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:39:44,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:39:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:44,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:44,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:44,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 17:39:44,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:39:44,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 17:39:44,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:44,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 17:39:44,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:39:44,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 17:39:44,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:39:44,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 17:39:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:39:44,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:39:44,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:39:44,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:39:44,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:39:44,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:39:44,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:39:44,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:39:44,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 17:39:44,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:39:44,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:39:44,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-13 17:39:44,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1403867986] [2020-10-13 17:39:44,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:39:44,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 17:39:44,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096105950] [2020-10-13 17:39:44,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 17:39:44,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:39:44,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 17:39:44,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-13 17:39:44,685 INFO L87 Difference]: Start difference. First operand 1697 states and 2179 transitions. Second operand 11 states. [2020-10-13 17:39:44,880 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 17:39:46,535 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 17:39:46,873 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 17:39:47,145 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 17:39:47,509 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 17:39:47,759 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 17:40:33,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:40:33,688 INFO L93 Difference]: Finished difference Result 2060 states and 2691 transitions. [2020-10-13 17:40:33,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 17:40:33,689 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 70 [2020-10-13 17:40:33,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:40:33,699 INFO L225 Difference]: With dead ends: 2060 [2020-10-13 17:40:33,699 INFO L226 Difference]: Without dead ends: 1765 [2020-10-13 17:40:33,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2020-10-13 17:40:33,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2020-10-13 17:40:33,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1526. [2020-10-13 17:40:33,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-10-13 17:40:33,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1959 transitions. [2020-10-13 17:40:33,868 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1959 transitions. Word has length 70 [2020-10-13 17:40:33,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:40:33,870 INFO L479 AbstractCegarLoop]: Abstraction has 1526 states and 1959 transitions. [2020-10-13 17:40:33,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 17:40:33,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1959 transitions. [2020-10-13 17:40:33,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-13 17:40:33,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:40:33,874 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 17:40:33,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 17:40:33,875 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:40:33,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:40:33,875 INFO L82 PathProgramCache]: Analyzing trace with hash 888304783, now seen corresponding path program 1 times [2020-10-13 17:40:33,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:40:33,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907873594] [2020-10-13 17:40:33,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:40:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:33,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:34,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:34,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 17:40:34,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:34,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 705 [2020-10-13 17:40:34,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:34,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 17:40:34,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-13 17:40:34,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 17:40:34,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:40:34,871 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 17:40:34,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:40:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:34,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:34,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:34,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:40:34,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:34,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 17:40:34,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:34,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:40:34,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:40:34,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:40:34,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:40:34,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:40:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:34,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:34,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:34,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:40:34,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:34,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:40:34,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:34,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:40:34,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:40:34,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:40:34,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:40:34,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 17:40:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:34,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:34,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:34,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:40:34,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:34,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:40:34,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:34,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:40:34,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:40:34,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:40:34,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:40:34,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 17:40:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:34,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:34,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:34,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:40:34,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:34,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:40:34,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:34,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:40:34,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:40:34,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:40:34,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:40:34,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:40:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:34,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:34,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:34,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:40:34,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:34,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:40:34,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:34,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:40:34,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:40:34,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:40:34,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:40:34,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 17:40:34,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:34,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:34,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:34,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:40:34,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:34,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:40:34,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:34,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:40:34,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:40:34,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:40:34,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:40:35,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 17:40:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:35,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:35,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:35,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 17:40:35,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:35,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 17:40:35,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:35,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 17:40:35,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:40:35,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 17:40:35,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:40:35,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:40:35,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:35,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:35,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:35,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:40:35,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:35,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:40:35,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:35,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:40:35,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:40:35,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:40:35,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:40:35,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:40:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:35,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:35,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:35,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 17:40:35,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:35,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 17:40:35,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:35,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 17:40:35,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:40:35,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 17:40:35,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:40:35,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-13 17:40:35,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907873594] [2020-10-13 17:40:35,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:40:35,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 17:40:35,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822386129] [2020-10-13 17:40:35,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 17:40:35,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:40:35,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 17:40:35,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-13 17:40:35,151 INFO L87 Difference]: Start difference. First operand 1526 states and 1959 transitions. Second operand 10 states. [2020-10-13 17:40:36,834 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 17:40:37,152 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 17:40:37,369 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 17:40:49,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:40:49,531 INFO L93 Difference]: Finished difference Result 1743 states and 2216 transitions. [2020-10-13 17:40:49,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 17:40:49,532 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 73 [2020-10-13 17:40:49,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:40:49,538 INFO L225 Difference]: With dead ends: 1743 [2020-10-13 17:40:49,538 INFO L226 Difference]: Without dead ends: 1320 [2020-10-13 17:40:49,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2020-10-13 17:40:49,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2020-10-13 17:40:49,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1236. [2020-10-13 17:40:49,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1236 states. [2020-10-13 17:40:49,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 1547 transitions. [2020-10-13 17:40:49,656 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 1547 transitions. Word has length 73 [2020-10-13 17:40:49,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:40:49,656 INFO L479 AbstractCegarLoop]: Abstraction has 1236 states and 1547 transitions. [2020-10-13 17:40:49,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 17:40:49,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 1547 transitions. [2020-10-13 17:40:49,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-13 17:40:49,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:40:49,659 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-13 17:40:49,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 17:40:49,660 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:40:49,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:40:49,660 INFO L82 PathProgramCache]: Analyzing trace with hash 563338372, now seen corresponding path program 1 times [2020-10-13 17:40:49,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:40:49,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [362553656] [2020-10-13 17:40:49,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:40:49,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:49,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:49,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:49,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:51,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:53,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:53,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 17:40:53,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:40:53,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3905 [2020-10-13 17:40:53,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:53,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 17:40:53,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-13 17:40:53,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 17:40:53,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:40:53,779 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 17:40:53,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:40:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:53,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:53,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:53,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:40:53,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:53,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 17:40:53,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:53,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:40:53,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:40:53,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:40:53,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:40:53,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:40:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:53,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:53,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:53,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:40:53,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:53,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:40:53,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:53,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:40:53,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:40:53,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:40:53,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:40:53,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 17:40:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:53,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:53,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:53,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:40:53,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:53,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:40:53,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:53,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:40:53,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:40:53,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:40:53,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:40:53,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 17:40:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:53,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:53,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:53,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:40:53,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:53,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:40:53,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:53,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:40:53,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:40:53,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:40:53,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:40:53,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:40:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:53,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:53,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:53,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:40:53,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:53,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:40:53,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:53,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:40:53,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:40:53,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:40:53,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:40:53,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 17:40:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:53,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:53,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:53,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:40:53,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:53,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:40:53,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:53,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:40:53,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:40:53,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:40:53,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:40:53,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 17:40:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:53,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:54,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:54,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 17:40:54,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:54,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-13 17:40:54,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:54,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 17:40:54,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 17:40:54,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 17:40:54,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:40:54,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 17:40:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:54,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:54,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:54,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 17:40:54,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:54,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 17:40:54,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:54,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 17:40:54,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:40:54,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 17:40:54,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:40:54,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:40:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:54,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:54,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:54,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:40:54,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:54,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:40:54,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:54,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:40:54,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:40:54,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:40:54,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:40:54,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:40:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:54,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:54,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:54,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 17:40:54,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:54,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 17:40:54,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:54,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 17:40:54,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:40:54,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 17:40:54,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:40:54,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 17:40:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:54,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:54,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:54,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:40:54,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:54,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:40:54,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:54,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:40:54,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:40:54,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:40:54,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:40:54,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 17:40:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:54,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:54,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:54,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:40:54,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:54,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:40:54,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:54,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:40:54,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 17:40:54,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:40:54,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:40:54,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 17:40:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:54,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:54,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:54,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 17:40:54,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:54,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:40:54,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:54,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:40:54,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 17:40:54,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:40:54,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:40:54,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:40:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:40:54,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:40:54,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:40:54,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:40:54,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:40:54,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:40:54,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:40:54,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:40:54,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:40:54,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:40:54,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:40:54,417 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-13 17:40:54,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [362553656] [2020-10-13 17:40:54,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:40:54,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 17:40:54,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990343943] [2020-10-13 17:40:54,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 17:40:54,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:40:54,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 17:40:54,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-13 17:40:54,423 INFO L87 Difference]: Start difference. First operand 1236 states and 1547 transitions. Second operand 11 states. [2020-10-13 17:40:54,652 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 17:41:18,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:41:18,590 INFO L93 Difference]: Finished difference Result 2581 states and 3255 transitions. [2020-10-13 17:41:18,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 17:41:18,591 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 82 [2020-10-13 17:41:18,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:41:18,599 INFO L225 Difference]: With dead ends: 2581 [2020-10-13 17:41:18,599 INFO L226 Difference]: Without dead ends: 1367 [2020-10-13 17:41:18,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-10-13 17:41:18,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2020-10-13 17:41:18,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1235. [2020-10-13 17:41:18,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1235 states. [2020-10-13 17:41:18,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1545 transitions. [2020-10-13 17:41:18,732 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1545 transitions. Word has length 82 [2020-10-13 17:41:18,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:41:18,732 INFO L479 AbstractCegarLoop]: Abstraction has 1235 states and 1545 transitions. [2020-10-13 17:41:18,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 17:41:18,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1545 transitions. [2020-10-13 17:41:18,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-13 17:41:18,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:41:18,737 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-13 17:41:18,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 17:41:18,737 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:41:18,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:41:18,738 INFO L82 PathProgramCache]: Analyzing trace with hash 452249574, now seen corresponding path program 1 times [2020-10-13 17:41:18,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:41:18,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624510087] [2020-10-13 17:41:18,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:41:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:41:18,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:41:18,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:41:18,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:41:19,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:41:21,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:41:21,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 17:41:21,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:41:21,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2683 [2020-10-13 17:41:21,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:41:21,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 17:41:21,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-13 17:41:21,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 17:41:21,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:41:21,637 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 17:41:21,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:41:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:41:21,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:41:21,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:41:21,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:41:21,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:41:21,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 17:41:21,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:41:21,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:41:21,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:41:21,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:41:21,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:41:21,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:41:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:41:21,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:41:21,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:41:21,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:41:21,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:41:21,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:41:21,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:41:21,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:41:21,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:41:21,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:41:21,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:41:21,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 17:41:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:41:21,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:41:21,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:41:21,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:41:21,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:41:21,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:41:21,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:41:21,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:41:21,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:41:21,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:41:21,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:41:21,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 17:41:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:41:21,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:41:21,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:41:21,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:41:21,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:41:21,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:41:21,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:41:21,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:41:21,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:41:21,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:41:21,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:41:21,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:41:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:41:21,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:41:21,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:41:21,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:41:21,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:41:21,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:41:21,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:41:21,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:41:21,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:41:21,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:41:21,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:41:21,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 17:41:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:41:21,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:41:21,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:41:21,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:41:21,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:41:21,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:41:21,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:41:21,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:41:21,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:41:21,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:41:21,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:41:21,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 17:41:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:41:21,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:41:21,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:41:21,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 17:41:21,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:41:21,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 17:41:21,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:41:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 17:41:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 17:41:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 17:41:21,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:41:21,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 17:41:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:41:21,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:41:21,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:41:21,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 17:41:21,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:41:21,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 17:41:21,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:41:21,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 17:41:21,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:41:21,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 17:41:21,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:41:22,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:41:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:41:22,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:41:22,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:41:22,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:41:22,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:41:22,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:41:22,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:41:22,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:41:22,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:41:22,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:41:22,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:41:22,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:41:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:41:22,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:41:22,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:41:22,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 17:41:22,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:41:22,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 17:41:22,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:41:22,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 17:41:22,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:41:22,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 17:41:22,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:41:22,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 17:41:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:41:22,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:41:22,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:41:22,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:41:22,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:41:22,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:41:22,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:41:22,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:41:22,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:41:22,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:41:22,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:41:22,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 17:41:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:41:22,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:41:22,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:41:22,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:41:22,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:41:22,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:41:22,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:41:22,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:41:22,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 17:41:22,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:41:22,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:41:22,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-13 17:41:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:41:22,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:41:22,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:41:22,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 17:41:22,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:41:22,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:41:22,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:41:22,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:41:22,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 17:41:22,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:41:22,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:41:22,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:41:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:41:22,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:41:22,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:41:22,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:41:22,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:41:22,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:41:22,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:41:22,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:41:22,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:41:22,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:41:22,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:41:22,152 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-13 17:41:22,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1624510087] [2020-10-13 17:41:22,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:41:22,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 17:41:22,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288140088] [2020-10-13 17:41:22,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 17:41:22,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:41:22,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 17:41:22,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-13 17:41:22,155 INFO L87 Difference]: Start difference. First operand 1235 states and 1545 transitions. Second operand 11 states. [2020-10-13 17:41:22,319 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 17:41:36,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:41:36,492 INFO L93 Difference]: Finished difference Result 1660 states and 2076 transitions. [2020-10-13 17:41:36,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 17:41:36,493 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 83 [2020-10-13 17:41:36,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:41:36,500 INFO L225 Difference]: With dead ends: 1660 [2020-10-13 17:41:36,501 INFO L226 Difference]: Without dead ends: 1364 [2020-10-13 17:41:36,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 17:41:36,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states.