/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 13:07:19,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 13:07:19,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 13:07:19,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 13:07:19,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 13:07:19,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 13:07:19,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 13:07:19,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 13:07:19,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 13:07:19,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 13:07:19,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 13:07:19,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 13:07:19,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 13:07:19,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 13:07:19,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 13:07:19,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 13:07:19,307 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 13:07:19,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 13:07:19,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 13:07:19,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 13:07:19,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 13:07:19,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 13:07:19,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 13:07:19,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 13:07:19,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 13:07:19,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 13:07:19,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 13:07:19,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 13:07:19,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 13:07:19,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 13:07:19,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 13:07:19,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 13:07:19,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 13:07:19,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 13:07:19,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 13:07:19,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 13:07:19,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 13:07:19,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 13:07:19,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 13:07:19,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 13:07:19,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 13:07:19,333 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 [2020-09-21 13:07:19,361 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 13:07:19,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 13:07:19,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 13:07:19,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 13:07:19,363 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 13:07:19,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 13:07:19,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 13:07:19,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 13:07:19,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 13:07:19,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 13:07:19,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 13:07:19,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 13:07:19,365 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 13:07:19,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 13:07:19,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 13:07:19,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 13:07:19,365 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 13:07:19,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 13:07:19,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 13:07:19,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 13:07:19,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 13:07:19,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 13:07:19,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 13:07:19,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 13:07:19,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 13:07:19,367 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 13:07:19,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-21 13:07:19,368 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.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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 13:07:19,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 13:07:19,857 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 13:07:19,861 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 13:07:19,863 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 13:07:19,863 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 13:07:19,865 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-09-21 13:07:19,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf4757e98/60c53fced749474c9997fb400441b09f/FLAGb788ce01b [2020-09-21 13:07:20,761 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 13:07:20,762 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-09-21 13:07:20,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf4757e98/60c53fced749474c9997fb400441b09f/FLAGb788ce01b [2020-09-21 13:07:20,819 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf4757e98/60c53fced749474c9997fb400441b09f [2020-09-21 13:07:20,832 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 13:07:20,838 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 13:07:20,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 13:07:20,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 13:07:20,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 13:07:20,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 01:07:20" (1/1) ... [2020-09-21 13:07:20,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56da84b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:20, skipping insertion in model container [2020-09-21 13:07:20,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 01:07:20" (1/1) ... [2020-09-21 13:07:20,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 13:07:20,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 13:07:21,480 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-09-21 13:07:21,481 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2540-2541] [2020-09-21 13:07:22,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 13:07:22,364 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 13:07:22,441 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-09-21 13:07:22,442 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2540-2541] [2020-09-21 13:07:22,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 13:07:22,670 INFO L208 MainTranslator]: Completed translation [2020-09-21 13:07:22,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:22 WrapperNode [2020-09-21 13:07:22,672 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 13:07:22,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 13:07:22,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 13:07:22,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 13:07:22,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:22" (1/1) ... [2020-09-21 13:07:22,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:22" (1/1) ... [2020-09-21 13:07:22,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:22" (1/1) ... [2020-09-21 13:07:22,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:22" (1/1) ... [2020-09-21 13:07:22,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:22" (1/1) ... [2020-09-21 13:07:22,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:22" (1/1) ... [2020-09-21 13:07:22,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:22" (1/1) ... [2020-09-21 13:07:22,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 13:07:22,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 13:07:22,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 13:07:22,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 13:07:22,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 13:07:23,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 13:07:23,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 13:07:23,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-21 13:07:23,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-09-21 13:07:23,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-09-21 13:07:23,054 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-09-21 13:07:23,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2020-09-21 13:07:23,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight16 [2020-09-21 13:07:23,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight8 [2020-09-21 13:07:23,056 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2020-09-21 13:07:23,056 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-09-21 13:07:23,057 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-09-21 13:07:23,057 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-09-21 13:07:23,059 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-09-21 13:07:23,059 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-09-21 13:07:23,060 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-09-21 13:07:23,060 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-09-21 13:07:23,060 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-21 13:07:23,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-21 13:07:23,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-21 13:07:23,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-21 13:07:23,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-21 13:07:23,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-21 13:07:23,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-21 13:07:23,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-21 13:07:23,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-21 13:07:23,061 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-21 13:07:23,061 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-21 13:07:23,061 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-09-21 13:07:23,062 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-09-21 13:07:23,062 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-09-21 13:07:23,062 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-09-21 13:07:23,062 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-09-21 13:07:23,062 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-09-21 13:07:23,062 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_drvdata [2020-09-21 13:07:23,062 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drvdata [2020-09-21 13:07:23,063 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_trigger [2020-09-21 13:07:23,063 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2020-09-21 13:07:23,063 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_cooked_read [2020-09-21 13:07:23,063 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_calibrate [2020-09-21 13:07:23,063 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_time [2020-09-21 13:07:23,063 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_handler [2020-09-21 13:07:23,063 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_interval [2020-09-21 13:07:23,064 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_decode [2020-09-21 13:07:23,064 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_cooked_read [2020-09-21 13:07:23,064 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_button_read [2020-09-21 13:07:23,064 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_poll [2020-09-21 13:07:23,064 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_open [2020-09-21 13:07:23,064 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_close [2020-09-21 13:07:23,064 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_calibrate_timer [2020-09-21 13:07:23,065 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_name [2020-09-21 13:07:23,065 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_device [2020-09-21 13:07:23,066 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_masks [2020-09-21 13:07:23,066 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_port [2020-09-21 13:07:23,066 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_connect [2020-09-21 13:07:23,066 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_disconnect [2020-09-21 13:07:23,067 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_parse_options [2020-09-21 13:07:23,067 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init [2020-09-21 13:07:23,067 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_exit [2020-09-21 13:07:23,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gameport_driver_1 [2020-09-21 13:07:23,068 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 13:07:23,068 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-21 13:07:23,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-09-21 13:07:23,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-09-21 13:07:23,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-09-21 13:07:23,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-09-21 13:07:23,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-09-21 13:07:23,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-09-21 13:07:23,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-09-21 13:07:23,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_driver [2020-09-21 13:07:23,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-09-21 13:07:23,073 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2020-09-21 13:07:23,074 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2020-09-21 13:07:23,074 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_start_polling [2020-09-21 13:07:23,074 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_stop_polling [2020-09-21 13:07:23,074 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_driver [2020-09-21 13:07:23,074 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-09-21 13:07:23,074 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-09-21 13:07:23,076 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-09-21 13:07:23,076 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-09-21 13:07:23,076 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-09-21 13:07:23,076 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-09-21 13:07:23,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_bind_1 [2020-09-21 13:07:23,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-21 13:07:23,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-21 13:07:23,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-09-21 13:07:23,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-09-21 13:07:23,077 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-09-21 13:07:23,077 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-21 13:07:23,077 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-09-21 13:07:23,077 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-09-21 13:07:23,077 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-09-21 13:07:23,077 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-09-21 13:07:23,078 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-21 13:07:23,078 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-21 13:07:23,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 13:07:23,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-21 13:07:23,078 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-09-21 13:07:23,078 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2020-09-21 13:07:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight16 [2020-09-21 13:07:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight8 [2020-09-21 13:07:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-21 13:07:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-09-21 13:07:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-21 13:07:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-09-21 13:07:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-09-21 13:07:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-09-21 13:07:23,080 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2020-09-21 13:07:23,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 13:07:23,080 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-09-21 13:07:23,080 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-09-21 13:07:23,080 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-09-21 13:07:23,084 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-09-21 13:07:23,085 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-09-21 13:07:23,085 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-09-21 13:07:23,085 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-09-21 13:07:23,085 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-09-21 13:07:23,087 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-09-21 13:07:23,087 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-21 13:07:23,087 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-09-21 13:07:23,088 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-21 13:07:23,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-09-21 13:07:23,089 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 13:07:23,089 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-21 13:07:23,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 13:07:23,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-21 13:07:23,091 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 13:07:23,094 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-21 13:07:23,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-21 13:07:23,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 13:07:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-21 13:07:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-21 13:07:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-21 13:07:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-21 13:07:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-21 13:07:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-21 13:07:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-21 13:07:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gameport_driver_1 [2020-09-21 13:07:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-09-21 13:07:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-09-21 13:07:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-09-21 13:07:23,102 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-21 13:07:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-21 13:07:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 13:07:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-09-21 13:07:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-09-21 13:07:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-09-21 13:07:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-09-21 13:07:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-09-21 13:07:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-09-21 13:07:23,104 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-09-21 13:07:23,104 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-09-21 13:07:23,104 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-09-21 13:07:23,104 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-09-21 13:07:23,104 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-09-21 13:07:23,104 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2020-09-21 13:07:23,104 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2020-09-21 13:07:23,104 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_drvdata [2020-09-21 13:07:23,105 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drvdata [2020-09-21 13:07:23,105 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_driver [2020-09-21 13:07:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_driver [2020-09-21 13:07:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_trigger [2020-09-21 13:07:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-21 13:07:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 13:07:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2020-09-21 13:07:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-09-21 13:07:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_cooked_read [2020-09-21 13:07:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-09-21 13:07:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_calibrate [2020-09-21 13:07:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_time [2020-09-21 13:07:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_handler [2020-09-21 13:07:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_interval [2020-09-21 13:07:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 13:07:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_start_polling [2020-09-21 13:07:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_stop_polling [2020-09-21 13:07:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure analog_decode [2020-09-21 13:07:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure analog_cooked_read [2020-09-21 13:07:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 13:07:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 13:07:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure analog_button_read [2020-09-21 13:07:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure analog_poll [2020-09-21 13:07:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure analog_open [2020-09-21 13:07:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure analog_close [2020-09-21 13:07:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure analog_calibrate_timer [2020-09-21 13:07:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure analog_name [2020-09-21 13:07:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_device [2020-09-21 13:07:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_masks [2020-09-21 13:07:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_port [2020-09-21 13:07:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure analog_connect [2020-09-21 13:07:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure analog_disconnect [2020-09-21 13:07:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure analog_parse_options [2020-09-21 13:07:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init [2020-09-21 13:07:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure analog_exit [2020-09-21 13:07:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-21 13:07:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-21 13:07:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-09-21 13:07:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_bind_1 [2020-09-21 13:07:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 13:07:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-09-21 13:07:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-09-21 13:07:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-09-21 13:07:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-09-21 13:07:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-09-21 13:07:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-09-21 13:07:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 13:07:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 13:07:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 13:07:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-21 13:07:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 13:07:23,880 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-21 13:07:25,439 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 13:07:25,440 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 13:07:25,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 01:07:25 BoogieIcfgContainer [2020-09-21 13:07:25,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 13:07:25,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 13:07:25,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 13:07:25,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 13:07:25,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 01:07:20" (1/3) ... [2020-09-21 13:07:25,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3d545b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 01:07:25, skipping insertion in model container [2020-09-21 13:07:25,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:22" (2/3) ... [2020-09-21 13:07:25,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3d545b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 01:07:25, skipping insertion in model container [2020-09-21 13:07:25,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 01:07:25" (3/3) ... [2020-09-21 13:07:25,459 INFO L109 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-09-21 13:07:25,471 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 13:07:25,483 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 13:07:25,507 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 13:07:25,547 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 13:07:25,547 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 13:07:25,548 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 13:07:25,548 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 13:07:25,548 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 13:07:25,548 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 13:07:25,548 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 13:07:25,548 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 13:07:25,596 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2020-09-21 13:07:25,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-21 13:07:25,609 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 13:07:25,611 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] [2020-09-21 13:07:25,611 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 13:07:25,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 13:07:25,619 INFO L82 PathProgramCache]: Analyzing trace with hash -2058672228, now seen corresponding path program 1 times [2020-09-21 13:07:25,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 13:07:25,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [713870302] [2020-09-21 13:07:25,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 13:07:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:26,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:26,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:27,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:27,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:27,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-21 13:07:27,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 13:07:27,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1210 [2020-09-21 13:07:27,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:27,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:27,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-21 13:07:27,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 13:07:27,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-21 13:07:28,183 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-21 13:07:28,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:28,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:28,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:28,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:28,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:28,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-09-21 13:07:28,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:28,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:28,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:28,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:28,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-21 13:07:28,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:28,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:28,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:28,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:28,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:28,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 13:07:28,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:28,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:28,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:28,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:28,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:28,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 13:07:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:28,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:28,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:28,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 13:07:28,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:28,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 13:07:28,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:28,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:28,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 13:07:28,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [713870302] [2020-09-21 13:07:28,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 13:07:28,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 13:07:28,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633169476] [2020-09-21 13:07:28,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 13:07:28,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 13:07:28,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 13:07:28,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 13:07:28,790 INFO L87 Difference]: Start difference. First operand 791 states. Second operand 5 states. [2020-09-21 13:07:29,734 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 13:07:38,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 13:07:38,129 INFO L93 Difference]: Finished difference Result 1670 states and 2206 transitions. [2020-09-21 13:07:38,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 13:07:38,131 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-09-21 13:07:38,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 13:07:38,162 INFO L225 Difference]: With dead ends: 1670 [2020-09-21 13:07:38,163 INFO L226 Difference]: Without dead ends: 854 [2020-09-21 13:07:38,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 13:07:38,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2020-09-21 13:07:38,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 813. [2020-09-21 13:07:38,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 813 states. [2020-09-21 13:07:38,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1054 transitions. [2020-09-21 13:07:38,465 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1054 transitions. Word has length 30 [2020-09-21 13:07:38,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 13:07:38,466 INFO L479 AbstractCegarLoop]: Abstraction has 813 states and 1054 transitions. [2020-09-21 13:07:38,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 13:07:38,466 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1054 transitions. [2020-09-21 13:07:38,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-21 13:07:38,469 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 13:07:38,470 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 13:07:38,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 13:07:38,470 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 13:07:38,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 13:07:38,471 INFO L82 PathProgramCache]: Analyzing trace with hash 229024885, now seen corresponding path program 1 times [2020-09-21 13:07:38,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 13:07:38,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203004401] [2020-09-21 13:07:38,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 13:07:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:38,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:38,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:39,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:39,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-21 13:07:39,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 13:07:39,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1028 [2020-09-21 13:07:39,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:39,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:39,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-21 13:07:39,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 13:07:39,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:40,109 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-21 13:07:40,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:40,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:40,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:40,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:40,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:40,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:40,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-21 13:07:40,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:40,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:40,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:40,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:40,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:40,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:40,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:40,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:40,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:40,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:40,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:40,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 13:07:40,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:40,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:40,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:40,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:40,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:40,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 13:07:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:40,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:40,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:40,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 13:07:40,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:40,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 13:07:40,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:40,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:40,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:40,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:40,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:40,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 13:07:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:40,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:40,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:40,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 13:07:40,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:40,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-21 13:07:40,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:40,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:40,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 13:07:40,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 13:07:40,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:40,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:40,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:40,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:40,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 13:07:40,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:40,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-21 13:07:40,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:40,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:40,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 13:07:40,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 13:07:40,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:40,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 13:07:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:40,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:40,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:40,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:40,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:40,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 13:07:40,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:40,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:40,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 13:07:40,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:40,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:40,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 13:07:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:40,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:40,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:40,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 13:07:40,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:40,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 13:07:40,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:40,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:40,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 13:07:40,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:40,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-21 13:07:40,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:40,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:40,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:40,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:40,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:40,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 13:07:40,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:40,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:40,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:40,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:40,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:40,848 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 13:07:40,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203004401] [2020-09-21 13:07:40,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 13:07:40,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 13:07:40,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832914598] [2020-09-21 13:07:40,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 13:07:40,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 13:07:40,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 13:07:40,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-21 13:07:40,853 INFO L87 Difference]: Start difference. First operand 813 states and 1054 transitions. Second operand 7 states. [2020-09-21 13:07:47,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 13:07:47,630 INFO L93 Difference]: Finished difference Result 1670 states and 2189 transitions. [2020-09-21 13:07:47,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 13:07:47,631 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-09-21 13:07:47,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 13:07:47,644 INFO L225 Difference]: With dead ends: 1670 [2020-09-21 13:07:47,644 INFO L226 Difference]: Without dead ends: 884 [2020-09-21 13:07:47,651 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-21 13:07:47,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2020-09-21 13:07:47,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 817. [2020-09-21 13:07:47,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 817 states. [2020-09-21 13:07:47,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1060 transitions. [2020-09-21 13:07:47,821 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1060 transitions. Word has length 65 [2020-09-21 13:07:47,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 13:07:47,821 INFO L479 AbstractCegarLoop]: Abstraction has 817 states and 1060 transitions. [2020-09-21 13:07:47,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 13:07:47,821 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1060 transitions. [2020-09-21 13:07:47,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 13:07:47,831 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 13:07:47,832 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 13:07:47,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 13:07:47,832 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 13:07:47,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 13:07:47,833 INFO L82 PathProgramCache]: Analyzing trace with hash 780245369, now seen corresponding path program 1 times [2020-09-21 13:07:47,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 13:07:47,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1692472339] [2020-09-21 13:07:47,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 13:07:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:48,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:48,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:49,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:49,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 13:07:49,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 13:07:49,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1090 [2020-09-21 13:07:49,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:49,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:49,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-21 13:07:49,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 13:07:49,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:49,647 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-21 13:07:49,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:49,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:49,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:49,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:49,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:49,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:49,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-21 13:07:49,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:49,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:49,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:49,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:49,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:49,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:49,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:50,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:50,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:50,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:50,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 13:07:50,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:50,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:50,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:50,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:50,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:50,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 13:07:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:50,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:50,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:50,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 13:07:50,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:50,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 13:07:50,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:50,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:50,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:50,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:50,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:50,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 13:07:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:50,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:50,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:50,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:50,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 13:07:50,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 13:07:50,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-21 13:07:50,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:50,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:50,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:50,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:50,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:50,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:50,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:50,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:50,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:50,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 13:07:50,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 13:07:50,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-21 13:07:50,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:50,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:50,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:50,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:50,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:50,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 13:07:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:50,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:50,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:50,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:50,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:50,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 13:07:50,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:50,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:50,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:50,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:50,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:50,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 13:07:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:50,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:50,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:50,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 13:07:50,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:50,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 13:07:50,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:50,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:50,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:50,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 13:07:50,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:50,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:50,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:50,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:50,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:50,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:50,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 13:07:50,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:50,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:50,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:50,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:50,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:50,475 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-21 13:07:50,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1692472339] [2020-09-21 13:07:50,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 13:07:50,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 13:07:50,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410120620] [2020-09-21 13:07:50,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 13:07:50,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 13:07:50,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 13:07:50,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-21 13:07:50,478 INFO L87 Difference]: Start difference. First operand 817 states and 1060 transitions. Second operand 7 states. [2020-09-21 13:07:51,327 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 13:07:58,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 13:07:58,360 INFO L93 Difference]: Finished difference Result 1707 states and 2233 transitions. [2020-09-21 13:07:58,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 13:07:58,362 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 67 [2020-09-21 13:07:58,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 13:07:58,371 INFO L225 Difference]: With dead ends: 1707 [2020-09-21 13:07:58,372 INFO L226 Difference]: Without dead ends: 917 [2020-09-21 13:07:58,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2020-09-21 13:07:58,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2020-09-21 13:07:58,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 876. [2020-09-21 13:07:58,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2020-09-21 13:07:58,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1140 transitions. [2020-09-21 13:07:58,515 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1140 transitions. Word has length 67 [2020-09-21 13:07:58,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 13:07:58,516 INFO L479 AbstractCegarLoop]: Abstraction has 876 states and 1140 transitions. [2020-09-21 13:07:58,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 13:07:58,516 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1140 transitions. [2020-09-21 13:07:58,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-21 13:07:58,519 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 13:07:58,519 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 13:07:58,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 13:07:58,520 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 13:07:58,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 13:07:58,520 INFO L82 PathProgramCache]: Analyzing trace with hash -2126791992, now seen corresponding path program 1 times [2020-09-21 13:07:58,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 13:07:58,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [180114691] [2020-09-21 13:07:58,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 13:07:58,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:58,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:59,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:59,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:59,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-21 13:07:59,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 13:07:59,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 13:07:59,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:59,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:59,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 13:07:59,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-21 13:07:59,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:08:00,189 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-21 13:08:00,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:08:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:08:00,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:00,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:08:00,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:08:00,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:08:00,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-21 13:08:00,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:08:00,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:08:00,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:08:00,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 13:08:00,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:08:00,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:08:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:08:00,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:00,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:08:00,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:08:00,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:08:00,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 13:08:00,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:08:00,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:08:00,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:08:00,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 13:08:00,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:08:00,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 13:08:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:08:00,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:00,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:08:00,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 13:08:00,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:08:00,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 13:08:00,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:08:00,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:08:00,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:08:00,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 13:08:00,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:08:00,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 13:08:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:08:00,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:00,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:00,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:08:00,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 13:08:00,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 13:08:00,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-09-21 13:08:00,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:08:00,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:08:00,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:08:00,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 13:08:00,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:08:00,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:08:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:08:00,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:00,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:00,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:08:00,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 13:08:00,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 13:08:00,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-21 13:08:00,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:08:00,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:08:00,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:08:00,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:08:00,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:08:00,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 13:08:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:08:00,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:00,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:08:00,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:08:00,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:08:00,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 13:08:00,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:08:00,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:08:00,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:08:00,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:08:00,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:08:01,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 13:08:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:08:01,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:01,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:08:01,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 13:08:01,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:08:01,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 13:08:01,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:08:01,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:08:01,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:08:01,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 13:08:01,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:08:01,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:08:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:08:01,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:01,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:08:01,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:08:01,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:08:01,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 13:08:01,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:08:01,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:08:01,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:08:01,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:08:01,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:08:01,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 13:08:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:08:01,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:01,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:08:01,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:08:01,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:08:01,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 13:08:01,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:08:01,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:08:01,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:08:01,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 13:08:01,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:08:01,162 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-21 13:08:01,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [180114691] [2020-09-21 13:08:01,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 13:08:01,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 13:08:01,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585715346] [2020-09-21 13:08:01,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 13:08:01,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 13:08:01,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 13:08:01,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-21 13:08:01,180 INFO L87 Difference]: Start difference. First operand 876 states and 1140 transitions. Second operand 7 states. [2020-09-21 13:08:02,075 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 13:08:06,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 13:08:06,908 INFO L93 Difference]: Finished difference Result 917 states and 1198 transitions. [2020-09-21 13:08:06,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 13:08:06,909 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 80 [2020-09-21 13:08:06,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 13:08:06,911 INFO L225 Difference]: With dead ends: 917 [2020-09-21 13:08:06,911 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 13:08:06,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2020-09-21 13:08:06,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 13:08:06,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 13:08:06,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 13:08:06,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 13:08:06,915 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 80 [2020-09-21 13:08:06,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 13:08:06,916 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 13:08:06,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 13:08:06,916 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 13:08:06,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 13:08:06,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 13:08:06,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 13:08:07,279 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2020-09-21 13:08:07,600 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2020-09-21 13:08:07,911 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 13:08:08,225 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 13:08:08,526 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 13:08:08,829 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 13:08:09,146 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2020-09-21 13:08:09,448 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2020-09-21 13:08:09,734 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 13:08:10,034 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2020-09-21 13:08:10,327 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 13:08:10,622 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 13:08:10,907 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 13:08:11,194 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 13:08:11,485 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 13:08:11,772 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 13:08:12,064 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 13:08:12,354 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 13:08:12,645 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 13:08:12,933 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 13:08:13,221 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-21 13:08:13,507 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 264